Common Weakness Enumeration
CWE-347
AllowedImproper Verification of Cryptographic Signature
Abstraction: Base · Status: Draft
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
1336 vulnerabilities reference this CWE, most recent first.
CVE-2026-2746 (GCVE-0-2026-2746)
Vulnerability from cvelistv5 – Published: 2026-03-04 08:44 – Updated: 2026-03-04 21:26
VLAI
EPSS
VEX
Title
Missing PGP Signature Tag
Summary
SEPPmail Secure Email Gateway before version 15.0.1 does not properly communicate PGP signature verification results, leaving users unable to detect forged emails.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-04 21:26 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://downloads.seppmail.com/extrelnotes/150/ER… | release-notes |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SEPPmail | Secure Email Gateway |
Affected:
0 , < 15.0.1
(custom)
cpe:2.3:a:seppmail:seppmail_secure_email_gateway:*:*:*:*:*:*:*:* |
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CVE-2026-2625 (GCVE-0-2026-2625)
Vulnerability from cvelistv5 – Published: 2026-04-03 18:38 – Updated: 2026-07-02 17:13
VLAI
EPSS
VEX
Title
Rust-rpm-sequoia: rust-rpm-sequoia: denial of service via crafted rpm file during signature verification
Summary
A flaw was found in rust-rpm-sequoia. An attacker can exploit this vulnerability by providing a specially crafted Red Hat Package Manager (RPM) file. During the RPM signature verification process, this crafted file can trigger an error in the OpenPGP signature parsing code, leading to an unconditional termination of the rpm process. This issue results in an application level denial of service, making the system unable to process RPM files for signature verification.
Severity
4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-08 18:51 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:12682 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-2625 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2440357 | issue-trackingx_refsource_REDHAT |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Hardened Images |
Unaffected:
1.10.1.1-1.2.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
Date Public
2026-02-17 12:34
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CVE-2026-1568 (GCVE-0-2026-1568)
Vulnerability from cvelistv5 – Published: 2026-02-03 16:47 – Updated: 2026-02-26 15:04
VLAI
EPSS
VEX
Title
Rapid7 InsightVM Signature Validation Vulnerability
Summary
Rapid7 InsightVM versions before 8.34.0 contain a signature verification issue on the Assertion Consumer Service (ACS) cloud endpoint that could allow an attacker to gain unauthorized access to InsightVM accounts setup
via "Security Console" installations, resulting in full account takeover. The issue occurs due to the application processing these unsigned assertions and issuing session cookies that granted access to the
targeted user accounts. This has been fixed in version 8.34.0 of InsightVM.
Severity
9.6 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-04 04:55 UTC
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Rapid7 | Vulnerability Management |
Affected:
0 , < 8.34.0
(semver)
|
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CVE-2026-1529 (GCVE-0-2026-1529)
Vulnerability from cvelistv5 – Published: 2026-02-09 18:36 – Updated: 2026-07-15 01:21
VLAI
EPSS
VEX
Title
Org.keycloak.services.resources.organizations: keycloak: unauthorized organization registration via improper invitation token validation
Summary
A flaw was found in Keycloak. An attacker can exploit this vulnerability by modifying the organization ID and target email within a legitimate invitation token's JSON Web Token (JWT) payload. This lack of cryptographic signature verification allows the attacker to successfully self-register into an unauthorized organization, leading to unauthorized access.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-09 20:51 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:2363 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:2364 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:2365 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:2366 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-1529 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2433783 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.13-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2-15 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.2.13 |
cpe:/a:redhat:build_keycloak:26.2::el9
|
|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.9-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4-11 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4-10 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.4.9 |
cpe:/a:redhat:build_keycloak:26.4::el9
|
Date Public
2026-02-09 18:21
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CVE-2026-1237 (GCVE-0-2026-1237)
Vulnerability from cvelistv5 – Published: 2026-01-28 15:01 – Updated: 2026-01-28 15:06
VLAI
EPSS
VEX
Summary
Vulnerable cross-model authorization in juju. If a charm's cross-model permissions are revoked or expire, a malicious user who is able to update database records can mint an invalid macaroon that is incorrectly validated by the juju controller, enabling a charm to maintain otherwise revoked or expired permissions. This allows a charm to continue relating to another charm in a cross-model relation, and use their workload without their permission. No fix is available as of the time of writing.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-28 15:05 UTC
CWE
Assigner
References
1 reference
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CVE-2026-0750 (GCVE-0-2026-0750)
Vulnerability from cvelistv5 – Published: 2026-01-28 18:53 – Updated: 2026-01-28 19:25
VLAI
EPSS
VEX
Title
Payment bypass in Commerce Paybox
Summary
Improper Verification of Cryptographic Signature vulnerability in Drupal Drupal Commerce Paybox Commerce Paybox on Drupal 7.X allows Authentication Bypass.This issue affects Drupal Commerce Paybox: from 7-x-1.0 through 7.X-1.5.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-28 19:25 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.herodevs.com/vulnerability-directory/… | third-party-advisory |
| https://d7es.tag1.com/security-advisories/commerc… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Drupal | Drupal Commerce Paybox |
Affected:
7-x-1.0 , ≤ 7.x-1.5
(custom)
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CVE-2026-0392 (GCVE-0-2026-0392)
Vulnerability from cvelistv5 – Published: 2026-08-03 09:56 – Updated: 2026-08-05 09:29
VLAI
EPSS
VEX
Title
eParakstītājs 3.0 for Windows – remote code execution via unauthenticated auto-update
Summary
eParakstītājs 3.0 for Windows before version
1.10.0 retrieves and executes its automatic updates over a channel that is not
authenticated or integrity-protected. On each launch the application fetches an
update descriptor (XML) over TLS but accepts any TLS certificate (a permissive
TrustManager and a HostnameVerifier that always returns true), does not verify
any digital signature on the update descriptor, and does not verify the
Authenticode signature or a checksum of the downloaded installer before running
it. A man-in-the-middle attacker able to redirect www.eparaksts.lv can serve a
crafted update descriptor pointing to an attacker-controlled executable, which
the client downloads and executes, resulting in arbitrary code execution on the
victim host.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-03 10:35 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.eparaksts.lv/lv/par_mums/Jaunumi/Jaun… | vendor-advisoryrelease-notes |
| https://cvd.cert.lv/inbox/view/vuln-all-1689187061 | government-resourcethird-party-advisorypermissions-required |
| https://offseq.com/en/research/eparakstitajs-cve-… | technical-descriptionthird-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Latvijas Valsts radio un televīzijas centrs (LVRTC) | eParakstītājs 3.0 |
Affected:
0 , < 1.10.0
(semver)
|
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GCVE-1988-2026-0349
Vulnerability from gna-1988 – Published: 2026-09-11 07:55 – Updated: 2026-09-11 11:29
VLAI
EPSS
VEX
Title
[SYSS-2026-004] SAP NetWeaver SAML XML Signature Wrapping
Summary
Advisory ID: SYSS-2026-004
Product: SAP NetWeaver ABAP / SAP_BASIS
Manufacturer: SAP SE
Affected Version(s): SAP_BASIS 700 - 918
Tested Version(s): 7.93 Patch 300
Vulnerability Type: CWE-347: Improper Verification of Cryptographic Signature
Risk Level: High
Solution Status: Fixed
Manufacturer Notification: 2025-11-06
Solution Date: 2026-02-10
Public Disclosure: 2026-06-08
CVE Reference: CVE-2026-23687
Author of Advisory: Moritz Bechler, SySS GmbH
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Overview:
SAP NetWeaver is the software stack powering SAP's business applications,
including S4/HANA.
The manufacturer describes the product as follows (see [1]):
"SAP NetWeaver provides an open integration and application platform and
facilitates the implementation of the Enterprise Services Architecture.
You can standardize business processes across technological boundaries,
integrate applications for your employees as required, and access and edit
simple information easily and in a structured manner.
[...]
SAP NetWeaver is the basis for SAP solutions."
SAML response validation in NetWeaver's SAML Service Provider is susceptible
to XML Signature wrapping attacks, specifically through Signature/Object tags.
This allows an attacker to manipulate SAML assertion data returned by the
identity provider, therefore enabling logging in as an arbitrary user.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Vulnerability Details:
In SAML authentication responses, the SAML assertion/user identity attributes
are cryptographically signed by the identity provider using the XML Signature
(XMLDSig) standard. In web single sign-on contexts, the SAML response is
passed through the authenticating user's browser and therefore very susceptible
to modification.
When verifying a specially crafted SAML response, the SAMP service provider
implementation verifies the signature over one part of the XML document while
using information from another element to identify the authenticated user.
Providing original, legitimate information from any valid SAML response in
the first part and the corresponding signature, along with a manipulated
alternative part, authentication to the SAP system as an arbitrary
SAML-enabled / mapped user is possible.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Proof of Concept (PoC):
A typical (non-encrypted, assertion signing) SAML response will have a structure
like the following (various irrelevant elements are removed for brevity):
<samlp:Response>
<Assertion ID="MyID">
<Signature>
<SignedInfo>
<Reference URI="#MyID">
<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"; />
<DigestValue>[...]</DigestValue>
</Reference>
</SignedInfo>
<SignatureValue>[...]</SignatureValue>
<KeyInfo>
<X509Data><X509Certificate>[...]</X509Certificate></X509Data>
</KeyInfo>
</Signature>
<Subject><...></Subject>
<AttributeStatement>
<Attribute Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name";>
<AttributeValue>originaluser@mydomain.example</AttributeValue>
</Attribute>
<...>
</AttributeStatement>
</Assertion>
</samlp:Response>
The XML Signature specification is very flexible (read: complex), leaving
significant room for ambiguities and implementation errors. Apart from
referencing the data to be signed/verified through the <Reference> element,
the signed data can also be directly included in the <Signature> element
through an <Object> tag (see [4]).
Doing so is fully specified and conformant with the XML schema.
Transforming the SAML response to use the <Object> syntax yields the following:
<samlp:Response>
<Assertion ID="MyID">
<Signature>
<SignedInfo>
<Reference URI="#MyID">
<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"; />
<DigestValue>[...]</DigestValue>
</Reference>
</SignedInfo>
<SignatureValue>[...]</SignatureValue>
<KeyInfo>
<X509Data><X509Certificate>[...]</X509Certificate></X509Data>
</KeyInfo>
<Object>
<Assertion ID="MyID">
<Subject><...></Subject>
<AttributeStatement>
<Attribute Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name";>
<AttributeValue>originaluser@mydomain.example</AttributeValue>
</Attribute>
<...>
</AttributeStatement>
</Assertion>
</Object>
</Signature>
<Subject><...></Subject>
<AttributeStatement>
<Attribute Name="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name";>
<AttributeValue>myadmin@mydomain.example</AttributeValue>
</Attribute>
<...>
</AttributeStatement>
</Assertion>
</samlp:Response>
This is a well-known and published attack vector against XML signatures.
A graphical representation of this transformation is given in [5], also
the Burp SAML Raider extension provides a convenient way to execute the
attack (XSW8).
As the signed elements have not changed, the XML Signature element is still
valid and can be verified. The XML Signature implementation used in NetWeaver
now calculates the hash value for verification of the signature over the
<Object> element's contents.
Now, the original copy of the data within the outer <Assertion> element
can be modified without invalidating the signature, and this is the
information extracted and used by NetWeaver to determine the identity of
the authenticated SAP user.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Solution:
Apply vendor patch: SAP note 3697567.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Disclosure Timeline:
2025-10-23: Vulnerability discovered
2025-11-06: Vulnerability reported to vendor
2025-11-10: Vendor unable to reproduce the vulnerability, requesting
additional diagnostics
2025-12-10: Reproduction with assistance of a generous customer
2025-12-12: Diagnostics provided to vendor
2025-12-18: Vendor responded to diagnostics with: "system reaction is as
expected, no security issue"
2025-12-18: Disputed this assessment
2026-01-08: Requested status from vendor
2026-01-08: Vendor confirmed vulnerability
2026-02-10: Vendor released patch
2026-06-08: Public disclosure of vulnerability (delayed on vendor's request)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
References:
[1] SAP NetWeaver documentation
https://help.sap.com/doc/saphelp_em900/9.0/en-US/ca/6fbd35746dbd2de10000009b38f889/frameset.htm
[2] SySS Security Advisory SYSS-2026-004
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2026-004.txt
[3] SySS Responsible Disclosure Policy
https://www.syss.de/en/responsible-disclosure-policy
[4] XML Signature Syntax and Processing Version 1.1
https://www.w3.org/TR/xmldsig-core1/#sec-Object
[5] Burp SAML Raider extension documentation, tree representation of signature
wrapping techniques
https://github.com/CompassSecurity/SAMLRaider/blob/master/src/main/resources/xswlist.png
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Credits:
This security vulnerability was found by Moritz Bechler of SySS GmbH.
E-Mail: moritz.bechler () syss de
Public Key: https://www.syss.de/fileadmin/dokumente/PGPKeys/Moritz_Bechler.asc
Key ID: 0x768EFE2BB3E53DDA
Key Fingerprint: 2C8F F101 9D77 BDE6 465E CCC2 768E FE2B B3E5 3DDA
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Disclaimer:
The information provided in this security advisory is provided "as is"
and without warranty of any kind. Details of this security advisory may
be updated in order to provide as accurate information as possible. The
latest version of this security advisory is available on the SySS website.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Copyright:
Creative Commons - Attribution (by) - Version 4.0
URL: https://creativecommons.org/licenses/by/4.0/deed.en
_______________________________________________
Sent through the Full Disclosure mailing list
https://nmap.org/mailman/listinfo/fulldisclosure
Web Archives & RSS: https://seclists.org/fulldisclosure/
Severity
No CVSS data available.
CWE
Assigner
References
13 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Sap | NetWeaver ABAP / SAP_BASIS |
Affected:
unknown
|
Relationships
analysis
GCVE-1988-2026-0349 (this record)
- related CVE-2026-23687
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"value": "Advisory ID: SYSS-2026-004\nProduct: SAP NetWeaver ABAP / SAP_BASIS\nManufacturer: SAP SE\nAffected Version(s): SAP_BASIS 700 - 918\nTested Version(s): 7.93 Patch 300\nVulnerability Type: CWE-347: Improper Verification of Cryptographic Signature\nRisk Level: High\nSolution Status: Fixed\nManufacturer Notification: 2025-11-06\nSolution Date: 2026-02-10\nPublic Disclosure: 2026-06-08\nCVE Reference: CVE-2026-23687\nAuthor of Advisory: Moritz Bechler, SySS GmbH\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nOverview:\n\nSAP NetWeaver is the software stack powering SAP\u0027s business applications,\nincluding S4/HANA.\n\nThe manufacturer describes the product as follows (see [1]):\n\n\"SAP NetWeaver provides an open integration and application platform and\nfacilitates the implementation of the Enterprise Services Architecture.\nYou can standardize business processes across technological boundaries,\nintegrate applications for your employees as required, and access and edit\nsimple information easily and in a structured manner.\n[...]\nSAP NetWeaver is the basis for SAP solutions.\"\n\nSAML response validation in NetWeaver\u0027s SAML Service Provider is susceptible\nto XML Signature wrapping attacks, specifically through Signature/Object tags.\nThis allows an attacker to manipulate SAML assertion data returned by the\nidentity provider, therefore enabling logging in as an arbitrary user.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nVulnerability Details:\n\nIn SAML authentication responses, the SAML assertion/user identity attributes\nare cryptographically signed by the identity provider using the XML Signature\n(XMLDSig) standard. In web single sign-on contexts, the SAML response is\npassed through the authenticating user\u0027s browser and therefore very susceptible\nto modification.\n\nWhen verifying a specially crafted SAML response, the SAMP service provider\nimplementation verifies the signature over one part of the XML document while\nusing information from another element to identify the authenticated user.\n\nProviding original, legitimate information from any valid SAML response in\nthe first part and the corresponding signature, along with a manipulated\nalternative part, authentication to the SAP system as an arbitrary\nSAML-enabled / mapped user is possible.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nProof of Concept (PoC):\n\nA typical (non-encrypted, assertion signing) SAML response will have a structure\nlike the following (various irrelevant elements are removed for brevity):\n\n\u003csamlp:Response\u003e\n\u003cAssertion ID=\"MyID\"\u003e\n \u003cSignature\u003e\n \u003cSignedInfo\u003e\n \u003cReference URI=\"#MyID\"\u003e\n \u003cDigestMethod Algorithm=\"http://www.w3.org/2001/04/xmlenc#sha256\"; /\u003e\n \u003cDigestValue\u003e[...]\u003c/DigestValue\u003e\n \u003c/Reference\u003e\n \u003c/SignedInfo\u003e\n \u003cSignatureValue\u003e[...]\u003c/SignatureValue\u003e\n \u003cKeyInfo\u003e\n \u003cX509Data\u003e\u003cX509Certificate\u003e[...]\u003c/X509Certificate\u003e\u003c/X509Data\u003e\n \u003c/KeyInfo\u003e\n \u003c/Signature\u003e\n \u003cSubject\u003e\u003c...\u003e\u003c/Subject\u003e\n \u003cAttributeStatement\u003e\n \u003cAttribute Name=\"http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name\";\u003e\n \u003cAttributeValue\u003eoriginaluser@mydomain.example\u003c/AttributeValue\u003e\n \u003c/Attribute\u003e\n \u003c...\u003e\n \u003c/AttributeStatement\u003e\n\u003c/Assertion\u003e\n\u003c/samlp:Response\u003e\n\nThe XML Signature specification is very flexible (read: complex), leaving\nsignificant room for ambiguities and implementation errors. Apart from\nreferencing the data to be signed/verified through the \u003cReference\u003e element,\nthe signed data can also be directly included in the \u003cSignature\u003e element\nthrough an \u003cObject\u003e tag (see [4]).\nDoing so is fully specified and conformant with the XML schema.\n\nTransforming the SAML response to use the \u003cObject\u003e syntax yields the following:\n\n\u003csamlp:Response\u003e\n\u003cAssertion ID=\"MyID\"\u003e\n \u003cSignature\u003e\n \u003cSignedInfo\u003e\n \u003cReference URI=\"#MyID\"\u003e\n \u003cDigestMethod Algorithm=\"http://www.w3.org/2001/04/xmlenc#sha256\"; /\u003e\n \u003cDigestValue\u003e[...]\u003c/DigestValue\u003e\n \u003c/Reference\u003e\n \u003c/SignedInfo\u003e\n \u003cSignatureValue\u003e[...]\u003c/SignatureValue\u003e\n \u003cKeyInfo\u003e\n \u003cX509Data\u003e\u003cX509Certificate\u003e[...]\u003c/X509Certificate\u003e\u003c/X509Data\u003e\n \u003c/KeyInfo\u003e\n \u003cObject\u003e\n \u003cAssertion ID=\"MyID\"\u003e\n \u003cSubject\u003e\u003c...\u003e\u003c/Subject\u003e\n \u003cAttributeStatement\u003e\n \u003cAttribute Name=\"http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name\";\u003e\n \u003cAttributeValue\u003eoriginaluser@mydomain.example\u003c/AttributeValue\u003e\n \u003c/Attribute\u003e\n \u003c...\u003e\n \u003c/AttributeStatement\u003e\n \u003c/Assertion\u003e\n \u003c/Object\u003e\n \u003c/Signature\u003e\n \u003cSubject\u003e\u003c...\u003e\u003c/Subject\u003e\n \u003cAttributeStatement\u003e\n \u003cAttribute Name=\"http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name\";\u003e\n \u003cAttributeValue\u003emyadmin@mydomain.example\u003c/AttributeValue\u003e\n \u003c/Attribute\u003e\n \u003c...\u003e\n \u003c/AttributeStatement\u003e\n\u003c/Assertion\u003e\n\u003c/samlp:Response\u003e\n\nThis is a well-known and published attack vector against XML signatures.\nA graphical representation of this transformation is given in [5], also\nthe Burp SAML Raider extension provides a convenient way to execute the\nattack (XSW8).\n\nAs the signed elements have not changed, the XML Signature element is still\nvalid and can be verified. The XML Signature implementation used in NetWeaver\nnow calculates the hash value for verification of the signature over the\n\u003cObject\u003e element\u0027s contents.\n\nNow, the original copy of the data within the outer \u003cAssertion\u003e element\ncan be modified without invalidating the signature, and this is the\ninformation extracted and used by NetWeaver to determine the identity of\nthe authenticated SAP user.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nSolution:\n\nApply vendor patch: SAP note 3697567.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nDisclosure Timeline:\n\n2025-10-23: Vulnerability discovered\n2025-11-06: Vulnerability reported to vendor\n2025-11-10: Vendor unable to reproduce the vulnerability, requesting\n additional diagnostics\n2025-12-10: Reproduction with assistance of a generous customer\n2025-12-12: Diagnostics provided to vendor\n2025-12-18: Vendor responded to diagnostics with: \"system reaction is as\n expected, no security issue\"\n2025-12-18: Disputed this assessment\n2026-01-08: Requested status from vendor\n2026-01-08: Vendor confirmed vulnerability\n2026-02-10: Vendor released patch\n2026-06-08: Public disclosure of vulnerability (delayed on vendor\u0027s request)\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nReferences:\n\n[1] SAP NetWeaver documentation\n https://help.sap.com/doc/saphelp_em900/9.0/en-US/ca/6fbd35746dbd2de10000009b38f889/frameset.htm\n[2] SySS Security Advisory SYSS-2026-004\n https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2026-004.txt\n[3] SySS Responsible Disclosure Policy\n https://www.syss.de/en/responsible-disclosure-policy\n[4] XML Signature Syntax and Processing Version 1.1\n https://www.w3.org/TR/xmldsig-core1/#sec-Object\n[5] Burp SAML Raider extension documentation, tree representation of signature\n wrapping techniques\n https://github.com/CompassSecurity/SAMLRaider/blob/master/src/main/resources/xswlist.png\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nCredits:\n\nThis security vulnerability was found by Moritz Bechler of SySS GmbH.\n\nE-Mail: moritz.bechler () syss de\nPublic Key: https://www.syss.de/fileadmin/dokumente/PGPKeys/Moritz_Bechler.asc\nKey ID: 0x768EFE2BB3E53DDA\nKey Fingerprint: 2C8F F101 9D77 BDE6 465E CCC2 768E FE2B B3E5 3DDA\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nDisclaimer:\n\nThe information provided in this security advisory is provided \"as is\"\nand without warranty of any kind. Details of this security advisory may\nbe updated in order to provide as accurate information as possible. The\nlatest version of this security advisory is available on the SySS website.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nCopyright:\n\nCreative Commons - Attribution (by) - Version 4.0\nURL: https://creativecommons.org/licenses/by/4.0/deed.en\n\n_______________________________________________\nSent through the Full Disclosure mailing list\nhttps://nmap.org/mailman/listinfo/fulldisclosure\nWeb Archives \u0026 RSS: https://seclists.org/fulldisclosure/"
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CVE-2026-0265 (GCVE-0-2026-0265)
Vulnerability from cvelistv5 – Published: 2026-05-13 17:38 – Updated: 2026-07-14 12:45
VLAI
EPSS
VEX
Title
PAN-OS: Authentication Bypass with Cloud Authentication Service (CAS) enabled
Summary
An authentication bypass vulnerability in Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to bypass authentication controls when Cloud Authentication Service (CAS) is enabled.
The risk is higher if CAS is enabled on the management interface and lower when any other login interfaces are used.
The risk of this issue is greatly reduced if you secure access to the management web interface by restricting access to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 .
This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series).
Cloud NGFW and Prisma Access® are not impacted by this vulnerability.
Severity
7.2 (High)
4.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-14 03:56 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://security.paloaltonetworks.com/CVE-2026-0265 | vendor-advisory |
| https://cert-portal.siemens.com/productcert/html/… |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Palo Alto Networks | Cloud NGFW |
Unaffected:
All
(custom)
|
|
| Palo Alto Networks | PAN-OS |
Affected:
12.1.0 , < 12.1.7, 12.1.4-h5
(custom)
Affected: 11.2.0 , < 11.2.12, 11.2.10-h6, 11.2.7-h13, 11.2.4-h17 (custom) Affected: 11.1.0 , < 11.1.15, 11.1.13-h5, 11.1.10-h25, 11.1.7-h6, 11.1.6-h32, 11.1.4-h33 (custom) Affected: 10.2.0 , < 10.2.18-h6, 10.2.16-h7, 10.2.13-h21, 10.2.10-h36, 10.2.7-h34 (custom) cpe:2.3:o:palo_alto_networks:pan-os:12.1.6:*:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:12.1.5:*:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:h3:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:h2:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:-:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:12.1.3:*:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:12.1.2:*:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.11:*:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.10:h5:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.10:h4:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.10:h3:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.10:h2:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.10:h1:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.10:-:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.9:*:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.8:*:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.7:h12:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.7:h11:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.7:h10:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.7:h8:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.7:h7:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.7:h4:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.7:h3:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.7:h2:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.7:h1:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.7:-:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.6:*:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.5:*:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:11.2.4:h15:*:*:*:*:*:* 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cpe:2.3:o:palo_alto_networks:pan-os:10.2.7:-:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:10.2.6:*:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:10.2.5:*:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:10.2.4:*:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:10.2.3:*:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:10.2.2:*:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:10.2.1:*:*:*:*:*:*:* cpe:2.3:o:palo_alto_networks:pan-os:10.2.0:*:*:*:*:*:*:* |
|
| Palo Alto Networks | Prisma Access |
Unaffected:
All
(custom)
|
|
| Siemens | RUGGEDCOM APE1808 |
Affected:
0 , < *
(custom)
|
Date Public
2026-05-13 16:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-0265",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-14T03:56:30.849776Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-14T10:31:44.019Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"defaultStatus": "unknown",
"product": "RUGGEDCOM APE1808",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-14T12:45:13.398Z",
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-967325.html"
}
],
"x_adpType": "supplier"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Cloud NGFW",
"vendor": "Palo Alto Networks",
"versions": [
{
"status": "unaffected",
"version": "All",
"versionType": "custom"
}
]
},
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"value": "\u003cp\u003eCustomers are impacted if the following conditions are true:\u003c/p\u003e\u003col\u003e\u003cli\u003eAuthentication Profile with CAS is enabled \u003cb\u003eand\u003c/b\u003e\u003c/li\u003e\u003cli\u003eAuthentication profile is attached to a login interface.\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eTo verify if you have CAS enabled, see our documentation on \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://docs.paloaltonetworks.com/ngfw/help/10-2/device/device-authentication-profile/configure-an-authentication-profile\"\u003eauthentication profile in management interface\u003c/a\u003e.\u0026nbsp;\u003c/p\u003e\u003cp\u003eTo verify if the CAS authentication profile is attached to your configurations in the PAN-OS management interface:\u003c/p\u003e\u003col\u003e\u003cli\u003eNavigate to \u003cb\u003eDevice\u003c/b\u003e\u0026nbsp;\u0026gt; \u003cb\u003eSetup\u003c/b\u003e\u0026nbsp;\u0026gt; \u003cb\u003eManagement\u003c/b\u003e\u0026nbsp;\u0026gt; \u003cb\u003eAuthentication Settings\u003c/b\u003e\u0026nbsp;\u0026gt; \u003cb\u003eAuthentication Profile\u003c/b\u003e.\u003c/li\u003e\u003cli\u003eNavigate to \u003cb\u003eDevice \u0026gt; User Identification \u0026gt; Authentication Portal Settings\u003c/b\u003e.\u003c/li\u003e\u003cli\u003eNavigate to \u003cb\u003eNetwork \u0026gt; Gateways \u0026gt; GlobalProtect Gateway Configuration\u003c/b\u003e.\u003c/li\u003e\u003cli\u003eNavigate to \u003cb\u003eNetwork \u0026gt; Portals \u0026gt; GlobalProtect Portal Configuration\u003c/b\u003e.\u003c/li\u003e\u003c/ol\u003e\u003cdiv\u003e\u003cp\u003eTo verify if the CAS authentication profile is attached to your configurations in the SCM profile:\u003c/p\u003e\u003col\u003e\u003cli\u003eNavigate to\u0026nbsp;\u003cb\u003eConfiguration \u0026gt; NGFW and Prisma Access\u003c/b\u003e in the SCM profile. Go to\u0026nbsp;\u003cb\u003eIdentity Services \u0026gt; Authentication \u0026gt; Authentication Profile\u003c/b\u003e.\u0026nbsp;\u0026nbsp;\u003c/li\u003e\u003cli\u003eNavigate to \u003cb\u003eDevice \u0026gt; Device Setup \u0026gt; Authentication and Accounting Settings \u0026gt; Authentication profile\u003c/b\u003e, and confirm the attached profile is set to CAS as auth method.\u003c/li\u003e\u003c/ol\u003e\u003c/div\u003e"
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"value": "Customers are impacted if the following conditions are true:\n\n 1. Authentication Profile with CAS is enabled and\n 2. Authentication profile is attached to a login interface.\n\nTo verify if you have CAS enabled, see our documentation on authentication profile in management interface (https://docs.paloaltonetworks.com/ngfw/help/10-2/device/device-authentication-profile/configure-an-authentication-profile). \n\nTo verify if the CAS authentication profile is attached to your configurations in the PAN-OS management interface:\n\n 1. Navigate to Device \u003e Setup \u003e Management \u003e Authentication Settings \u003e Authentication Profile.\n 2. Navigate to Device \u003e User Identification \u003e Authentication Portal Settings.\n 3. Navigate to Network \u003e Gateways \u003e GlobalProtect Gateway Configuration.\n 4. Navigate to Network \u003e Portals \u003e GlobalProtect Portal Configuration.\n\nTo verify if the CAS authentication profile is attached to your configurations in the SCM profile:\n\n 1. Navigate to Configuration \u003e NGFW and Prisma Access in the SCM profile. Go to Identity Services \u003e Authentication \u003e Authentication Profile. \n 2. Navigate to Device \u003e Device Setup \u003e Authentication and Accounting Settings \u003e Authentication profile, and confirm the attached profile is set to CAS as auth method."
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"credits": [
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"type": "other",
"value": "Palo Alto Networks thanks Harsh Jaiswal from Hacktron AI and our internal security research teams for discovering and reporting this issue."
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"datePublic": "2026-05-13T16:00:00.000Z",
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"value": "\u003cp\u003eAn authentication bypass vulnerability in Palo Alto Networks PAN-OS\u00ae software enables an unauthenticated attacker with network access to bypass authentication controls when Cloud Authentication Service (CAS) is enabled.\u003c/p\u003e\u003cp\u003eThe risk is higher if CAS is enabled on the management interface and lower when any other login interfaces are used.\u003cbr\u003e\u003cbr\u003eThe risk of this issue is greatly reduced if you secure access to the management web interface by restricting access to only trusted internal IP addresses according to our recommended \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431\"\u003ebest practice deployment guidelines\u003c/a\u003e.\u003cbr\u003e\u003cbr\u003eThis issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series).\u003cbr\u003e\u003cbr\u003eCloud NGFW and Prisma Access\u003cb\u003e\u003cspan\u003e\u00ae\u003c/span\u003e\u003c/b\u003e are not impacted by this vulnerability.\u003c/p\u003e"
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"value": "An authentication bypass vulnerability in Palo Alto Networks PAN-OS\u00ae software enables an unauthenticated attacker with network access to bypass authentication controls when Cloud Authentication Service (CAS) is enabled.\n\n\n\nThe risk is higher if CAS is enabled on the management interface and lower when any other login interfaces are used.\n\nThe risk of this issue is greatly reduced if you secure access to the management web interface by restricting access to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 .\n\nThis issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series).\n\nCloud NGFW and Prisma Access\u00ae are not impacted by this vulnerability."
}
],
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"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 7.2,
"baseSeverity": "HIGH",
"exploitMaturity": "UNREPORTED",
"privilegesRequired": "NONE",
"providerUrgency": "RED",
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"userInteraction": "NONE",
"valueDensity": "DIFFUSE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Red",
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"baseScore": 4.8,
"baseSeverity": "MEDIUM",
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"privilegesRequired": "NONE",
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"version": "4.0",
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"format": "CVSS",
"scenarios": [
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"lang": "en",
"value": "If you configure restricted access to a jump box that is the only system allowed to access the management interface, you greatly reduce the risk of exploitation because attacks would require privileged access using only those IP addresses."
}
]
},
{
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"Recovery": "USER",
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"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 2.7,
"baseSeverity": "LOW",
"exploitMaturity": "UNREPORTED",
"privilegesRequired": "NONE",
"providerUrgency": "AMBER",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "HIGH",
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"descriptions": [
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"description": "CWE-347 Improper Verification of Cryptographic Signature",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-13T17:38:33.822Z",
"orgId": "d6c1279f-00f6-4ef7-9217-f89ffe703ec0",
"shortName": "palo_alto"
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"references": [
{
"tags": [
"vendor-advisory"
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"url": "https://security.paloaltonetworks.com/CVE-2026-0265"
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"solutions": [
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"value": "\u003ctable class=\"tbl\"\u003e\u003cthead\u003e\u003ctr\u003e\u003cth\u003eVersion\u003c/th\u003e\u003cth\u003eMinor Version Range\u003c/th\u003e\u003cth\u003eSuggested Solution\u003c/th\u003e\u003c/tr\u003e\u003c/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003eCloud NGFW\u003c/td\u003e\u003ctd\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003eNo action needed.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003ePAN-OS 12.1\u003c/td\u003e\u003ctd\u003e12.1.5 through 12.1.6\u003c/td\u003e\u003ctd\u003eUpgrade to 12.1.7 or later.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e12.1.2 through 12.1.4-h*\u003c/td\u003e\u003ctd\u003eUpgrade to 12.1.4-h5 or 12.1.7 or later.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003ePAN-OS 11.2\u003c/td\u003e\u003ctd\u003e11.2.11 or later\u003c/td\u003e\u003ctd\u003eUpgrade to 11.2.12 or later.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e11.2.8 through 11.2.10-h*\u003c/td\u003e\u003ctd\u003eUpgrade to 11.2.10-h6 or 11.2.12 or later.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e11.2.5 through 11.2.7-h*\u003c/td\u003e\u003ctd\u003eUpgrade to 11.2.7-h13 or 11.2.12 or later.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e11.2.0 through 11.2.4-h*\u003c/td\u003e\u003ctd\u003eUpgrade to 11.2.4-h17 or 11.2.12 or later.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003ePAN-OS 11.1\u003c/td\u003e\u003ctd\u003e11.1.14 or later\u003c/td\u003e\u003ctd\u003eUpgrade to 11.1.15 or later.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e11.1.11 through 11.1.13-h*\u003c/td\u003e\u003ctd\u003eUpgrade to 11.1.13-h5 or 11.1.15 or later.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e11.1.8 through 11.1.10-h*\u003c/td\u003e\u003ctd\u003eUpgrade to 11.1.10-h25 or 11.1.15 or later.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e11.1.7 through 11.1.7-h*\u003c/td\u003e\u003ctd\u003eUpgrade to 11.1.7-h6 or 11.1.15 or later.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e11.1.5 through 11.1.6-h*\u003c/td\u003e\u003ctd\u003eUpgrade to 11.1.6-h32 or 11.1.15 or later.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e11.1.0 through 11.1.4-h*\u003c/td\u003e\u003ctd\u003eUpgrade to 11.1.4-h33 or 11.1.15 or later.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003ePAN-OS 10.2\u003c/td\u003e\u003ctd\u003e10.2.17 through 10.2.18-h*\u003c/td\u003e\u003ctd\u003eUpgrade to 10.2.18-h6 or later.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e10.2.14 through 10.2.16-h*\u003c/td\u003e\u003ctd\u003eUpgrade to 10.2.16-h7 or 10.2.18-h6 or later.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e10.2.11 through 10.2.13-h*\u003c/td\u003e\u003ctd\u003eUpgrade to 10.2.13-h21 or 10.2.18-h6 or later.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e10.2.8 through 10.2.10-h*\u003c/td\u003e\u003ctd\u003eUpgrade to 10.2.10-h36 or 10.2.18-h6 or later.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e10.2.0 through 10.2.7-h*\u003c/td\u003e\u003ctd\u003eUpgrade to 10.2.7-h34 or 10.2.18-h6 or later.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eAll older \u003cbr\u003eunsupported \u003cbr\u003ePAN-OS versions\u003c/td\u003e\u003ctd\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003eUpgrade to a supported fixed version.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003ePrisma Access\u003c/td\u003e\u003ctd\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003eNo action needed.\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e"
}
],
"value": "VERSION MINOR VERSION RANGE SUGGESTED SOLUTION\nCloud NGFW No action needed.\nPAN-OS 12.1 12.1.5 through 12.1.6 Upgrade to 12.1.7 or later.\n 12.1.2 through 12.1.4-h* Upgrade to 12.1.4-h5 or 12.1.7 or later.\nPAN-OS 11.2 11.2.11 or later Upgrade to 11.2.12 or later.\n 11.2.8 through 11.2.10-h* Upgrade to 11.2.10-h6 or 11.2.12 or later.\n 11.2.5 through 11.2.7-h* Upgrade to 11.2.7-h13 or 11.2.12 or later.\n 11.2.0 through 11.2.4-h* Upgrade to 11.2.4-h17 or 11.2.12 or later.\nPAN-OS 11.1 11.1.14 or later Upgrade to 11.1.15 or later.\n 11.1.11 through 11.1.13-h* Upgrade to 11.1.13-h5 or 11.1.15 or later.\n 11.1.8 through 11.1.10-h* Upgrade to 11.1.10-h25 or 11.1.15 or later.\n 11.1.7 through 11.1.7-h* Upgrade to 11.1.7-h6 or 11.1.15 or later.\n 11.1.5 through 11.1.6-h* Upgrade to 11.1.6-h32 or 11.1.15 or later.\n 11.1.0 through 11.1.4-h* Upgrade to 11.1.4-h33 or 11.1.15 or later.\nPAN-OS 10.2 10.2.17 through 10.2.18-h* Upgrade to 10.2.18-h6 or later.\n 10.2.14 through 10.2.16-h* Upgrade to 10.2.16-h7 or 10.2.18-h6 or later.\n 10.2.11 through 10.2.13-h* Upgrade to 10.2.13-h21 or 10.2.18-h6 or later.\n 10.2.8 through 10.2.10-h* Upgrade to 10.2.10-h36 or 10.2.18-h6 or later.\n 10.2.0 through 10.2.7-h* Upgrade to 10.2.7-h34 or 10.2.18-h6 or later.\nAll older Upgrade to a supported fixed version.\nunsupported\nPAN-OS versions\nPrisma Access No action needed."
}
],
"source": {
"discovery": "EXTERNAL"
},
"timeline": [
{
"lang": "en",
"time": "2026-05-13T16:00:00.000Z",
"value": "Initial Publication."
}
],
"title": "PAN-OS: Authentication Bypass with Cloud Authentication Service (CAS) enabled",
"workarounds": [
{
"lang": "eng",
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"value": "\u003cp\u003eThe vast majority of firewalls already follow Palo Alto Networks\u0027 and industry best practices. However, if you haven\u2019t already, we strongly recommend that you secure access to your management interface according to our best practice deployment guidelines. Specifically, you should restrict access to the management interface to only trusted internal IP addresses to prevent external access from the internet.\u003cbr\u003e\u003cbr\u003eReview information about how to secure management access to your Palo Alto Networks firewalls:\u003c/p\u003e\u003cul\u003e\u003cli\u003ePalo Alto Networks LIVEcommunity article: \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431\"\u003ehttps://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431\u003c/a\u003e\u003c/li\u003e\u003cli\u003ePalo Alto Networks official and more detailed technical documentation: \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://docs.paloaltonetworks.com/best-practices/10-1/administrative-access-best-practices/administrative-access-best-practices/deploy-administrative-access-best-practices\"\u003ehttps://docs.paloaltonetworks.com/best-practices/10-1/administrative-access-best-practices/administrative-access-best-practices/deploy-administrative-access-best-practices\u003c/a\u003e\u0026nbsp;\u003c/li\u003e\u003c/ul\u003e\u003cp\u003eTo temporarily mitigate this issue, customers can disable the Cloud Authentication Service (CAS) by changing the associated authentication profile to SAML, RADIUS, or other supported authentication methods.\u003c/p\u003e\u003cp\u003eCustomers with a Threat Prevention subscription can block attacks for this vulnerability by enabling Threat ID 510008 from Applications and Threats content version 9100-10044 and later. Threat ID 510008 depends on features present in PAN-OS 11.2 and above.\u003c/p\u003e\u003cspan\u003eTo ensure the Threat ID provides effective protection against this vulnerability, follow these steps\u003c/span\u003e:\u003cbr\u003e\u003cul\u003e\u003cli\u003e\u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://docs.paloaltonetworks.com/best-practices/10-1/administrative-access-best-practices/administrative-access-best-practices/deploy-administrative-access-best-practices#id59206398-3dab-4b2f-9b4b-7ea500d036ba\"\u003eRoute incoming traffic for the MGT port through a DP port\u003c/a\u003e, e.g., enabling management profile on a DP interface for management access.\u0026nbsp;\u003c/li\u003e\u003cli\u003eEnsure that\u0026nbsp;\u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://live.paloaltonetworks.com/t5/globalprotect-articles/applying-vulnerability-protection-to-globalprotect-interfaces/ta-p/340184\"\u003evulnerability protection security profile is applied to your GlobalProtect interface\u003c/a\u003e.\u0026nbsp;\u003c/li\u003e\u003cli\u003e\u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://docs.paloaltonetworks.com/best-practices/10-1/administrative-access-best-practices/administrative-access-best-practices/deploy-administrative-access-best-practices#id112f7714-8995-4496-bbf9-781e63dec71c\"\u003eReplace the default certificate for Inbound Traffic Management\u003c/a\u003e.\u0026nbsp;\u003c/li\u003e\u003cli\u003e\u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://docs.paloaltonetworks.com/best-practices/10-1/administrative-access-best-practices/administrative-access-best-practices/deploy-administrative-access-best-practices#idbbd82587-17a2-42b4-9245-d3714e1e13a2\"\u003eDecrypt inbound traffic to the management interface so the firewall can inspect it\u003c/a\u003e.\u0026nbsp;\u003c/li\u003e\u003cli\u003eEnable Threat Prevention on the inbound traffic to management services.\u003c/li\u003e\u003c/ul\u003e"
}
],
"value": "The vast majority of firewalls already follow Palo Alto Networks\u0027 and industry best practices. However, if you haven\u2019t already, we strongly recommend that you secure access to your management interface according to our best practice deployment guidelines. Specifically, you should restrict access to the management interface to only trusted internal IP addresses to prevent external access from the internet.\n\nReview information about how to secure management access to your Palo Alto Networks firewalls:\n\n * Palo Alto Networks LIVEcommunity article: https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431\n * Palo Alto Networks official and more detailed technical documentation: https://docs.paloaltonetworks.com/best-practices/10-1/administrative-access-best-practices/administrative-access-best-practices/deploy-administrative-access-best-practices \n\nTo temporarily mitigate this issue, customers can disable the Cloud Authentication Service (CAS) by changing the associated authentication profile to SAML, RADIUS, or other supported authentication methods.\n\nCustomers with a Threat Prevention subscription can block attacks for this vulnerability by enabling Threat ID 510008 from Applications and Threats content version 9100-10044 and later. Threat ID 510008 depends on features present in PAN-OS 11.2 and above.\n\nTo ensure the Threat ID provides effective protection against this vulnerability, follow these steps:\n\n * Route incoming traffic for the MGT port through a DP port (https://docs.paloaltonetworks.com/best-practices/10-1/administrative-access-best-practices/administrative-access-best-practices/deploy-administrative-access-best-practices#id59206398-3dab-4b2f-9b4b-7ea500d036ba), e.g., enabling management profile on a DP interface for management access. \n * Ensure that vulnerability protection security profile is applied to your GlobalProtect interface (https://live.paloaltonetworks.com/t5/globalprotect-articles/applying-vulnerability-protection-to-globalprotect-interfaces/ta-p/340184). \n * Replace the default certificate for Inbound Traffic Management (https://docs.paloaltonetworks.com/best-practices/10-1/administrative-access-best-practices/administrative-access-best-practices/deploy-administrative-access-best-practices#id112f7714-8995-4496-bbf9-781e63dec71c). \n * Decrypt inbound traffic to the management interface so the firewall can inspect it (https://docs.paloaltonetworks.com/best-practices/10-1/administrative-access-best-practices/administrative-access-best-practices/deploy-administrative-access-best-practices#idbbd82587-17a2-42b4-9245-d3714e1e13a2). \n * Enable Threat Prevention on the inbound traffic to management services."
}
],
"x_affectedList": [
"PAN-OS 12.1.6",
"PAN-OS 12.1.5",
"PAN-OS 12.1.4-h3",
"PAN-OS 12.1.4-h2",
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CVE-2026-0234 (GCVE-0-2026-0234)
Vulnerability from cvelistv5 – Published: 2026-04-13 07:15 – Updated: 2026-04-14 03:55
VLAI
EPSS
VEX
Title
Cortex XSOAR: Improper Verification of Cryptographic Signature in Microsoft Teams integration
Summary
An improper verification of cryptographic signature vulnerability exists in Cortex XSOAR and Cortex XSIAM platforms during integration of Microsoft Teams that enables an unauthenticated user to access and modify protected resources.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-13 00:00 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.paloaltonetworks.com/CVE-2026-0234 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Palo Alto Networks | Cortex XSOAR Microsoft Teams Marketplace |
Affected:
1.5.0 , < 1.5.52
(custom)
cpe:2.3:a:palo_alto_networks:cortex_xsoar_microsoft_teams_marketplace:*:*:*:*:*:*:*:* |
|
| Palo Alto Networks | Cortex XSIAM Microsoft Teams Marketplace |
Affected:
1.5.0 , < 1.5.52
(custom)
cpe:2.3:a:palo_alto_networks:cortex_xsiam_microsoft_teams_marketplace:*:*:*:*:*:*:*:* |
Date Public
2026-04-08 16:00
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"description": "CWE-347 Improper Verification of Cryptographic Signature",
"lang": "en",
"type": "CWE"
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"dateUpdated": "2026-04-13T07:15:03.667Z",
"orgId": "d6c1279f-00f6-4ef7-9217-f89ffe703ec0",
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"references": [
{
"tags": [
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"url": "https://security.paloaltonetworks.com/CVE-2026-0234"
}
],
"solutions": [
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"source": {
"discovery": "EXTERNAL"
},
"timeline": [
{
"lang": "en",
"time": "2026-04-08T16:00:00.000Z",
"value": "Initial Publication"
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],
"title": "Cortex XSOAR: Improper Verification of Cryptographic Signature in Microsoft Teams integration",
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"cveMetadata": {
"assignerOrgId": "d6c1279f-00f6-4ef7-9217-f89ffe703ec0",
"assignerShortName": "palo_alto",
"cveId": "CVE-2026-0234",
"datePublished": "2026-04-13T07:15:03.667Z",
"dateReserved": "2025-11-03T20:43:55.337Z",
"dateUpdated": "2026-04-14T03:55:44.286Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
No mitigation information available for this CWE.
CAPEC-463: Padding Oracle Crypto Attack
An adversary is able to efficiently decrypt data without knowing the decryption key if a target system leaks data on whether or not a padding error happened while decrypting the ciphertext. A target system that leaks this type of information becomes the padding oracle and an adversary is able to make use of that oracle to efficiently decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). In addition to performing decryption, an adversary is also able to produce valid ciphertexts (i.e., perform encryption) by using the padding oracle, all without knowing the encryption key.
CAPEC-475: Signature Spoofing by Improper Validation
An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.