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.
1328 vulnerabilities reference this CWE, most recent first.
CVE-2026-85525 (GCVE-0-2026-85525)
Vulnerability from cvelistv5 – Published: 2026-09-04 08:22 – Updated: 2026-09-10 15:44
VLAI
EPSS
VEX
Title
Improper OCSP response validation in Snowflake drivers
Summary
Improper OCSP response validation in the Snowflake Python, Go, JDBC, and Node.js drivers allowed a revoked TLS certificate to be accepted as valid, because OCSP responses were not reliably bound to the certificate being validated and definitive verification failures were treated as transient. A man-in-the-middle attacker holding a revoked certificate and its private key for a Snowflake or stage hostname could cause the driver to establish a TLS session to the attacker-controlled endpoint anyway, allowing the attacker to read and modify data transmitted within that connection. Successful exploitation requires that on-path position and the corresponding private key, and impact is limited to data carried within the intercepted connection. The fix is available in Snowflake Connector for Python v4.7.3, Snowflake Go Driver v2.2.0, Snowflake JDBC Driver v4.3.4 (including the snowflake-jdbc-fips and snowflake-jdbc-thin), and Snowflake Node.js Driver v3.3.0. Users must manually upgrade.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 19:40 UTC
CWE
Assigner
References
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Snowflake | Snowflake Connector for Python |
Affected:
0 , < 4.7.3
(python)
|
|
| Snowflake | Snowflake Go Driver |
Affected:
0 , ≤ 1.19.1
(semver)
|
|
| Snowflake | Snowflake Go Driver |
Affected:
2.0.0 , < 2.2.0
(semver)
|
|
| Snowflake | Snowflake JDBC Driver |
Affected:
0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake JDBC Driver (FIPS) |
Affected:
0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake JDBC Driver (Thin) |
Affected:
0 , < 4.3.4
(maven)
|
|
| Snowflake | Snowflake Node.js Driver |
Affected:
0 , < 3.3.0
(semver)
|
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CVE-2026-85394 (GCVE-0-2026-85394)
Vulnerability from cvelistv5 – Published: 2026-09-03 18:54 – Updated: 2026-09-14 13:50
VLAI
EPSS
VEX
Title
python-jose through 3.5.0 Algorithm Confusion via DER-encoded Public Key as HMAC Secret
Summary
python-jose through 3.5.0 fails to properly validate asymmetric keys in HMAC initialization, accepting DER-encoded public keys that lack PEM armor or SSH prefixes. Attackers holding the service's public key can forge HS256 tokens that pass verification when algorithms are not explicitly restricted. This is an incomplete fix for CVE-2024-33663.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 13:05 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/mpdavis/python-jose/issues/414 | issue-tracking |
| https://github.com/mpdavis/python-jose | product |
| https://github.com/mpdavis/python-jose/blob/018b3… | technical-description |
| https://github.com/mpdavis/python-jose/blob/018b3… | technical-description |
| https://github.com/advisories/GHSA-6c5p-j8vq-pqhj | related |
| https://www.vulncheck.com/advisories/python-jose-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| mpdavis | python-jose |
Affected:
0 , ≤ 3.5.0
(semver)
cpe:2.3:a:python-jose_project:python-jose:*:*:*:*:*:*:*:* |
Date Public
2026-07-06 00:00
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CVE-2026-85393 (GCVE-0-2026-85393)
Vulnerability from cvelistv5 – Published: 2026-09-03 18:54 – Updated: 2026-09-03 19:14
VLAI
EPSS
VEX
Title
node-forge through 1.4.0 RSA PKCS#1 v1.5 Signature Forgery via Nested DigestAlgorithm Padding
Summary
node-forge through 1.4.0 fails to validate element count in nested DigestAlgorithm sequences during RSA PKCS#1 v1.5 signature verification. Attackers can embed garbage bytes inside the DigestAlgorithm sequence to forge valid signatures for arbitrary messages using low-exponent RSA keys. This is an incomplete fix for CVE-2026-33894.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 19:13 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/digitalbazaar/forge/issues/1149 | issue-tracking |
| https://github.com/digitalbazaar/forge | product |
| https://github.com/digitalbazaar/forge/blob/v1.4.… | technical-description |
| https://github.com/digitalbazaar/forge/blob/v1.4.… | technical-description |
| https://github.com/advisories/GHSA-ppp5-5v6c-4jwp | related |
| https://www.vulncheck.com/advisories/node-forge-t… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| digitalbazaar | forge |
Affected:
0 , ≤ 1.4.0
(semver)
cpe:2.3:a:digitalbazaar:forge:*:*:*:*:*:*:*:* |
Date Public
2026-07-06 00:00
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CVE-2026-84185 (GCVE-0-2026-84185)
Vulnerability from cvelistv5 – Published: 2026-09-03 20:46 – Updated: 2026-09-04 18:57
VLAI
EPSS
VEX
Title
Jwcrypto: jwcrypto: general json jws kid binding bypass during jwkset verification
Summary
A flaw was found in the jwcrypto library, which is used for implementing Javascript Object Signing and Encryption (JOSE) standards. The issue occurs when the library verifies a General JSON Serialization JWS using a set of keys. Due to a coding error, the library fails to correctly identify the specific key ID (kid) and may instead accept a signature made by any valid key in the set. This can allow an attacker with a valid key to bypass authorization checks in applications that rely on the key ID to identify specific tenants or users.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 18:52 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-84185 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2526729 | issue-trackingx_refsource_REDHAT |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Ansible Automation Platform 2 |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift AI (RHOAI) |
cpe:/a:redhat:openshift_ai
|
|
| Red Hat | Red Hat OpenStack Platform 16.2 |
cpe:/a:redhat:openstack:16.2
|
Date Public
2026-09-03 20:32
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CVE-2026-82955 (GCVE-0-2026-82955)
Vulnerability from cvelistv5 – Published: 2026-09-02 14:43 – Updated: 2026-09-02 15:58
VLAI
EPSS
VEX
Summary
In the current development version of Eclipse aeriOS, which has not yet had an official release, the KrakenD instance included in the API Gateway component had the disable_jwk_security parameter hard-coded to true, with no option to override it through the Helm chart configuration. This setting disables TLS certificate verification when KrakenD retrieves the JSON Web Key Set (JWKS) used to validate bearer tokens, potentially allowing an attacker with the ability to intercept this communication to provide a malicious JWKS and compromise token validation.
The issue has been addressed by making the parameter configurable through the boolean Helm value krakend.config.disableJwkSecurity and setting its default value to false, ensuring that TLS certificate verification is enabled by default.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 15:43 UTC
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse aeriOS |
Affected:
371ea2101e42aa6503161ce08bbe986e319a9c2f , < e680c69c34b82db4944517198330cc447a1e8f98
(git)
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CVE-2026-82876 (GCVE-0-2026-82876)
Vulnerability from cvelistv5 – Published: 2026-08-31 10:51 – Updated: 2026-09-02 14:57
VLAI
EPSS
VEX
Title
Phison PS3111-S11 Controller Firmware Signature Verification Bypass
Summary
Phison PS3111-S11 controller firmware verifies RSA signatures using a public modulus embedded within the firmware image itself rather than anchored in immutable storage. Attackers can generate arbitrary RSA key pairs, sign modified firmware with the private key, embed the matching modulus in the signature segment, and the controller accepts the tampered firmware as valid.
Severity
8.2 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 14:57 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://trulycrisp.github.io/drivefirmware/phison_s11/ | technical-description |
| https://github.com/trulycrisp/psychite | exploit |
| https://www.vulncheck.com/advisories/phison-ps311… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Phison Electronics Corporation | PS3111-S11 Controller Firmware |
Affected:
SBFQT1.3
(custom)
|
Date Public
2026-06-08 00:00
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CVE-2026-82645 (GCVE-0-2026-82645)
Vulnerability from cvelistv5 – Published: 2026-08-30 14:33 – Updated: 2026-08-31 16:48
VLAI
EPSS
VEX
Title
AVideo Unauthenticated Stream Credential Disclosure via Forgeable Token
Summary
AVideo (current commit e01e41ecc and earlier) exposes stream credentials through the plugin/Live/view/Live_restreams/getLiveKey.json.php endpoint. Supplying a 'token' request parameter waives both the Live::canRestream() access gate and the restream ownership check, causing the endpoint to return any restream's stream_key and stream_url (credentials for external platforms such as YouTube, Facebook, and Twitch) without authentication. The token is merely encryptString() of an integer id with no user binding, expiry, or authentication tag. Because encryption uses AES-256-CBC with a deterministic IV and no MAC, and because intval() accepts any string beginning with a digit, an unauthenticated attacker can forge valid tokens using the public encryption oracle in view/url2Embed.json.php, disclosing arbitrary users' stream credentials.
Severity
8.6 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 16:47 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/WWBN/AVideo/security/advisorie… | vendor-advisory |
| https://www.vulncheck.com/advisories/avideo-unaut… | third-party-advisory |
Impacted products
Date Public
2026-08-14 00:00
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CVE-2026-82461 (GCVE-0-2026-82461)
Vulnerability from cvelistv5 – Published: 2026-08-29 16:35 – Updated: 2026-08-31 18:52
VLAI
EPSS
VEX
Title
pac4j-oidc before 6.5.6 Privilege Escalation via Unverified Keycloak Access Token
Summary
pac4j-oidc before 6.5.6 fails to verify access token signatures, issuers, audiences, or expiry when extracting Keycloak realm and client roles. Attackers can forge access tokens with administrative roles paired with valid ID tokens to bypass authorization checks in applications relying on pac4j role validation.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 16:23 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/pac4j/pac4j/commit/2270c3ff70e… | patch |
| https://www.pac4j.org/blog/security-advisory-pac4… | vendor-advisory |
| https://github.com/pac4j/pac4j/blob/pac4j-parent-… | technical-description |
| https://github.com/pac4j/pac4j | product |
| https://www.vulncheck.com/advisories/pac4j-oidc-b… | third-party-advisory |
Impacted products
Date Public
2026-08-24 00:00
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CVE-2026-82454 (GCVE-0-2026-82454)
Vulnerability from cvelistv5 – Published: 2026-08-29 13:47 – Updated: 2026-08-31 18:53
VLAI
EPSS
VEX
Title
Omnivore before android-0.227.0 Authentication Bypass via Apple Sign-in
Summary
The Omnivore API (packages/api) before the fix in commit abf53d6 contains an authentication bypass in Apple sign-in token verification. The decodeAppleToken function extracted the 'alg' field from the attacker-supplied JWT header and passed it as the sole allowed algorithm to jwt.verify(). Using jsonwebtoken v8 (which does not validate key/algorithm compatibility), an attacker can set alg=HS256 and sign a forged token using Apple's publicly available RSA public key as the HMAC secret, bypassing signature verification and impersonating any Apple-linked account.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 16:34 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/omnivore-app/omnivore/pull/4652 | issue-trackingpatch |
| https://github.com/omnivore-app/omnivore/commit/a… | patch |
| https://github.com/omnivore-app/omnivore | product |
| https://www.vulncheck.com/advisories/omnivore-bef… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| omnivore-app | omnivore |
Affected:
0 , < abf53d650875
(git)
|
Date Public
2026-08-25 00:00
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CVE-2026-81717 (GCVE-0-2026-81717)
Vulnerability from cvelistv5 – Published: 2026-08-27 14:51 – Updated: 2026-08-27 17:37
VLAI
EPSS
VEX
Title
openssl_encrypt before 1.4.9 Integrity Bypass via Added Files
Summary
openssl_encrypt (pip package openssl-encrypt) before 1.4.9 contains two weaknesses in the portable USB drive feature, whose threat model treats the removable drive as untrusted (attacker with physical write access). USBDriveCreator._verify_integrity_file only validates files listed in the manifest, so files added to the drive — including a root-level autorun payload — are not detected and integrity verification still passes. Additionally, a globally constant, source-embedded KDF salt (_LEGACY_FIXED_SALT) is used to derive the drive encryption key for any drive lacking a per-drive salt file, defeating precomputation resistance and enabling an offline rainbow-table attack.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 17:37 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/jahlives/openssl_encrypt/secur… | vendor-advisory |
| https://www.vulncheck.com/advisories/openssl-encr… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jahlives | openssl_encrypt |
Affected:
0 , < 1.4.9
(semver)
Unaffected: 1.4.9 (semver) |
Date Public
2026-08-12 00:00
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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.