Common Weakness Enumeration
CWE-611
AllowedImproper Restriction of XML External Entity Reference
Abstraction: Base · Status: Draft
The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.
1691 vulnerabilities reference this CWE, most recent first.
CVE-2026-23795 (GCVE-0-2026-23795)
Vulnerability from cvelistv5 – Published: 2026-02-03 15:14 – Updated: 2026-02-03 16:00
VLAI
EPSS
VEX
Title
Apache Syncope: Console XXE on Keymaster parameters
Summary
Improper Restriction of XML External Entity Reference vulnerability in Apache Syncope Console.
An administrator with adequate entitlements to create or edit Keymaster parameters via Console can construct malicious XML text to launch an XXE attack, thereby causing sensitive data leakage occurs.
This issue affects Apache Syncope: from 3.0 through 3.0.15, from 4.0 through 4.0.3.
Users are recommended to upgrade to version 3.0.16 / 4.0.4, which fix this issue.
Severity
4.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Syncope |
Affected:
3.0 , ≤ 3.0.15
(semver)
Affected: 4.0 , ≤ 4.0.3 (semver) |
Credits
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CVE-2026-23739 (GCVE-0-2026-23739)
Vulnerability from cvelistv5 – Published: 2026-02-06 16:42 – Updated: 2026-02-06 17:37
VLAI
EPSS
VEX
Title
Asterisk xml.c uses unsafe XML_PARSE_NOENT leading to potential XXE Injection
Summary
Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2, the ast_xml_open() function in xml.c parses XML documents using libxml with unsafe parsing options that enable entity expansion and XInclude processing. Specifically, it invokes xmlReadFile() with the XML_PARSE_NOENT flag and later processes XIncludes via xmlXIncludeProcess().If any untrusted or user-supplied XML file is passed to this function, it can allow an attacker to trigger XML External Entity (XXE) or XInclude-based local file disclosure, potentially exposing sensitive files from the host system. This can also be triggered in other cases in which the user is able to supply input in xml format that triggers the asterisk process to parse it. This issue has been patched in versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/asterisk/asterisk/security/adv… | x_refsource_CONFIRM |
Impacted products
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CVE-2026-22186 (GCVE-0-2026-22186)
Vulnerability from cvelistv5 – Published: 2026-01-07 20:26 – Updated: 2026-07-14 15:53
VLAI
EPSS
VEX
Title
Bio-Formats <= 8.3.0 XXE in Leica XLEF Metadata Parser
Summary
Bio-Formats versions up to and including 8.3.0 contain an XML External Entity (XXE) vulnerability in the Leica Microsystems metadata parsing component (e.g., XLEF). The parser uses an insecurely configured DocumentBuilderFactory when processing Leica XML-based metadata files, allowing external entity expansion and external DTD loading. A crafted metadata file can trigger outbound network requests (SSRF), access local system resources where readable, or cause a denial of service during XML parsing.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://seclists.org/fulldisclosure/2026/Jan/6 | technical-descriptionexploit |
| https://github.com/ome/bioformats/security/adviso… | vendor-advisory |
| https://docs.openmicroscopy.org/bio-formats/ | productrelease-notes |
| https://www.vulncheck.com/advisories/bio-formats-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Open Microscopy Environment | Bio-Formats |
Affected:
0 , ≤ 8.3.0
(semver)
|
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CVE-2026-20029 (GCVE-0-2026-20029)
Vulnerability from cvelistv5 – Published: 2026-01-07 16:23 – Updated: 2026-01-07 16:40
VLAI
EPSS
VEX
Title
Cisco Identity Services Engine XML External Entity Processing Information Disclosure Vulnerability
Summary
A vulnerability in the licensing features of Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, remote attacker with administrative privileges to gain access to sensitive information.
This vulnerability is due to improper parsing of XML that is processed by the web-based management interface of Cisco ISE and Cisco ISE-PIC. An attacker could exploit this vulnerability by uploading a malicious file to the application. A successful exploit could allow the attacker to read arbitrary files from the underlying operating system that could include sensitive data that should otherwise be inaccessible even to administrators. To exploit this vulnerability, the attacker must have valid administrative credentials.
Severity
4.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Identity Services Engine Software |
Affected:
3.1.0
Affected: 3.1.0 p1 Affected: 3.1.0 p3 Affected: 3.1.0 p2 Affected: 3.2.0 Affected: 3.1.0 p4 Affected: 3.1.0 p5 Affected: 3.2.0 p1 Affected: 3.1.0 p6 Affected: 3.2.0 p2 Affected: 3.1.0 p7 Affected: 3.3.0 Affected: 3.2.0 p3 Affected: 3.2.0 p4 Affected: 3.1.0 p8 Affected: 3.2.0 p5 Affected: 3.2.0 p6 Affected: 3.1.0 p9 Affected: 3.3 Patch 2 Affected: 3.3 Patch 1 Affected: 3.3 Patch 3 Affected: 3.4.0 Affected: 3.2.0 p7 Affected: 3.3 Patch 4 Affected: 3.4 Patch 1 Affected: 3.1.0 p10 Affected: 3.3 Patch 5 Affected: 3.3 Patch 6 Affected: 3.4 Patch 2 Affected: 3.3 Patch 7 Affected: 3.4 Patch 3 |
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CVE-2026-13449 (GCVE-0-2026-13449)
Vulnerability from cvelistv5 – Published: 2026-06-30 19:32 – Updated: 2026-07-01 14:30
VLAI
EPSS
VEX
Title
XXE attack in IBM Business Automation Manager Open Editions
Summary
IBM Business Automation Manager Open Editions 9.0.0 through 9.4.2 is vulnerable to an XML external entity injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources.
Severity
7.6 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7278532 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Business Automation Manager Open Editions |
Affected:
9.0.0 , ≤ 9.4.2
(semver)
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CVE-2026-12975 (GCVE-0-2026-12975)
Vulnerability from cvelistv5 – Published: 2026-06-25 21:12 – Updated: 2026-07-15 01:22
VLAI
EPSS
VEX
Title
Apicurio/apicurio-registry: apicurio-registry: unhardened saxparser in content-type detection leads to blind xxe / ssrf / billion-laughs dos
Summary
A flaw was found in Apicurio Registry. The ContentTypeUtil.isParsableXml() method creates a SAXParserFactory without enabling secure processing features or disabling external entity resolution. An attacker with artifact-write permission (or unauthenticated when the registry runs with default configuration) can upload a crafted XML document to trigger blind server-side request forgery (SSRF) via external DTD/entity fetch, or cause denial of service via entity expansion.
Severity
8.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-12975 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2491688 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat build of Apicurio Registry 3 |
cpe:/a:redhat:apicurio_registry:3 |
Date Public
2026-06-10 13:00
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CVE-2026-12788 (GCVE-0-2026-12788)
Vulnerability from cvelistv5 – Published: 2026-06-21 07:45 – Updated: 2026-06-22 17:54
VLAI
EPSS
VEX
Title
zhilink 智互联(深圳)科技有限公司 ADP Application Developer Platform 应用开发者平台 XML Parser import xml external entity reference
Summary
A vulnerability was determined in zhilink 智互联(深圳)科技有限公司 ADP Application Developer Platform 应用开发者平台 1.0.0. This vulnerability affects unknown code of the file /adpweb/a/base/barcodeDetail/import of the component XML Parser. This manipulation causes xml external entity reference. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/372530 | vdb-entry |
| https://vuldb.com/vuln/372530/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-12788 | third-party-advisory |
| https://vuldb.com/submit/835655 | third-party-advisory |
| https://ucn9h68n9289.feishu.cn/docx/LeLOdhV6mo3cl… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| zhilink 智互联(深圳)科技有限公司 | ADP Application Developer Platform 应用开发者平台 |
Affected:
1.0.0
cpe:2.3:a:zhilink_:adp_application_developer_platform_:*:*:*:*:*:*:*:* |
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CVE-2026-8045 (GCVE-0-2026-8045)
Vulnerability from cvelistv5 – Published: 2026-06-09 14:41 – Updated: 2026-06-09 16:01
VLAI
EPSS
VEX
Summary
CWE-611 Improper Restriction of XML External Entity Reference vulnerability exists that could cause information disclosure of server-side file contents when an attacker with a Data Center Expert user account submits crafted XML payloads to SOAP service endpoints.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-611 - Improper restriction of XML external entity reference
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Schneider Electric | EcoStruxure™ IT Data Center Expert |
Affected:
v9.1.1 and Prior
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CVE-2026-6807 (GCVE-0-2026-6807)
Vulnerability from cvelistv5 – Published: 2026-04-28 17:41 – Updated: 2026-04-29 15:12 Unsupported When Assigned
VLAI
EPSS
VEX
Title
NSA GRASSMARLIN Improper Restriction of XML External Entity Reference
Summary
A vulnerability in GRASSMARLIN v3.2.1 allows crafted session data to
trigger improper handling of XML input, which may result in unintended
exposure of sensitive information. The flaw stems from insufficient
hardening of the XML parsing process.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| NSA | GRASSMARLIN |
Affected:
All versions
|
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CVE-2026-6653 (GCVE-0-2026-6653)
Vulnerability from cvelistv5 – Published: 2026-06-22 12:40 – Updated: 2026-06-22 15:51
VLAI
EPSS
VEX
Title
libxml2: Use after free in xmlParseInternalSubset via improper entity resolution handling
Summary
Use After Free in libxml2's xmlParseInternalSubset from GNOME libxml2 version 2.9.11 to 2.11.0 allows a remote attacker to cause a denial-of-service via maliciously crafted XML input with improper entity resolution handling.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://bugs.launchpad.net/ubuntu/+source/libxml2… | issue-tracking |
| https://gitlab.gnome.org/GNOME/libxml2/-/work_ite… | issue-tracking |
Impacted products
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Mitigation
Implementation
System Configuration
Many XML parsers and validators can be configured to disable external entity expansion.
CAPEC-221: Data Serialization External Entities Blowup
This attack takes advantage of the entity replacement property of certain data serialization languages (e.g., XML, YAML, etc.) where the value of the replacement is a URI. A well-crafted file could have the entity refer to a URI that consumes a large amount of resources to create a denial of service condition. This can cause the system to either freeze, crash, or execute arbitrary code depending on the URI.