Common Weakness Enumeration

CWE-611

Allowed

Improper Restriction of XML External Entity Reference

Abstraction: Base · Status: Draft

API response cwe.mitre.org

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.

1831 vulnerabilities reference this CWE, most recent first.

CVE-2026-12667 (GCVE-0-2026-12667)

Vulnerability from cvelistv5 – Published: 2026-09-15 17:07 – Updated: 2026-09-15 19:00
VLAI
Title
IBM MQ .NET client is vulnerable to XML external entity injection
Summary
IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow an authenticated attacker to read files from a vulnerable .NET client or cause limited denial of service due to improper handling of XML external entities in RFH2 folder parsing.
Severity
7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 19:00 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
URL Tags
https://www.ibm.com/support/pages/node/7284936 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM MQ Affected: 9.1.0.0 , ≤ 9.1.0.37 LTS (semver)
Affected: 9.2.0.0 , ≤ 9.2.0.43 LTS (semver)
Affected: 9.3.0.0 , ≤ 9.3.0.41 LTS (semver)
Affected: 9.3.0.0 , ≤ 9.3.5.1 CD (semver)
Affected: 9.4.0.0 , ≤ 9.4.0.25 LTS (semver)
Affected: 9.4.0.0 , ≤ 9.4.5.1 CD (semver)
Affected: 10.0.0.0
    cpe:2.3:a:ibm:mq:9.1.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.1.0.37:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.2.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.2.0.43:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.3.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.3.0.41:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.3.5.1:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.4.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.4.0.25:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.4.5.1:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:10.0.0.0:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
To clipboard 

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                "id": "CVE-2026-12667",
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              "value": "\u003cp\u003eThis issue was addressed under Known Issue DT474690\u003c/p\u003e\u003cp\u003eIBM MQ version 9.1 LTS\u003c/p\u003e\u003cp\u003e\u003ca href=\"https://www.ibm.com/support/pages/downloading-ibm-mq-91-lts\" rel=\"noopener noreferrer nofollow\"\u003eApply cumulative security update 9.1.0.38\u003c/a\u003e\u003c/p\u003e\u003cp\u003eIBM MQ version 9.2 LTS\u003c/p\u003e\u003cp\u003e\u003ca href=\"https://www.ibm.com/support/pages/downloading-ibm-mq-92-lts\" rel=\"noopener noreferrer nofollow\"\u003eApply cumulative security update 9.2.0.44\u003c/a\u003e\u003c/p\u003e\u003cp\u003eIBM MQ version 9.3 LTS\u003c/p\u003e\u003cp\u003e\u003ca href=\"https://www.ibm.com/support/pages/downloading-ibm-mq-93-lts\" rel=\"noopener noreferrer nofollow\"\u003eApply cumulative security update 9.3.0.42\u003c/a\u003e\u003c/p\u003e\u003cp\u003eIBM MQ version 9.4 LTS\u003c/p\u003e\u003cp\u003e\u003ca href=\"https://www.ibm.com/support/pages/downloading-ibm-mq-94-lts\" rel=\"noopener noreferrer nofollow\"\u003eApply cumulative security update\u003c/a\u003e\u003ca href=\"https://www.ibm.com/support/pages/downloading-ibm-mq-94-lts\" rel=\"noopener noreferrer nofollow\"\u003e\u00a09.4.0.26\u003c/a\u003e\u003c/p\u003e\u003cp\u003eIBM MQ version 9.3 CD, 9.4 CD and 10.0.0.0\u003c/p\u003e\u003cp\u003e\u003ca href=\"https://www.ibm.com/support/pages/downloading-ibm-mq-100\" rel=\"noopener noreferrer nofollow\"\u003eUpgrade to IBM MQ version 10.0.0.5\u003c/a\u003e\u003c/p\u003e"
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      "title": "IBM MQ .NET client is vulnerable to XML external entity injection"
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CVE-2026-12666 (GCVE-0-2026-12666)

Vulnerability from cvelistv5 – Published: 2026-09-15 17:08 – Updated: 2026-09-17 16:22
VLAI
Title
IBM MQ Java messaging is vulnerable to XML external entity injection
Summary
IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 Classes for Java could allow an authenticated attacker to obtain sensitive information or cause a denial of service due to XML external entity injection in MQRFH2 header processing.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 16:21 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
URL Tags
https://www.ibm.com/support/pages/node/7284939 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM MQ Affected: 9.1.0.0 , ≤ 9.1.0.37 LTS (semver)
Affected: 9.2.0.0 , ≤ 9.2.0.43 LTS (semver)
Affected: 9.3.0.0 , ≤ 9.3.0.41 LTS (semver)
Affected: 9.3.0.0 , ≤ 9.3.5.1 CD (semver)
Affected: 9.4.0.0 , ≤ 9.4.0.25 LTS (semver)
Affected: 9.4.0.0 , ≤ 9.4.5.1 CD (semver)
Affected: 10.0.0.0
    cpe:2.3:a:ibm:mq:9.1.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.1.0.37:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.2.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.2.0.43:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.3.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.3.0.41:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.3.5.1:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.4.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.4.0.25:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.4.5.1:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:10.0.0.0:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
To clipboard 

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            }
          ],
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        }
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CVE-2026-10025 (GCVE-0-2026-10025)

Vulnerability from cvelistv5 – Published: 2026-08-05 16:03 – Updated: 2026-08-06 14:23
VLAI
Title
IBM QRadar SIEM has an XML External Entity (XXE) injection vulnerability
Summary
IBM QRadar 7.6.0.0 through 7.6.0.1, and 7.5.0 through 7.5.0 UP 15 Interim Fix 005 has an XML External Entity (XXE) injection vulnerability. The vulnerability resides in the parseXmlPayload() function within the event processing pipeline ( q1labs_core.jar ). When at least one log source type is configured to use XML-format property autodetection, the system processes XML-formatted syslog events sent to port 514 (UDP/TCP) without authentication.
Severity
8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 14:22 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
URL Tags
https://www.ibm.com/support/pages/node/7282394 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM QRadar Affected: 7.6.0.0 , ≤ 7.6.0.1 (semver)
Affected: 7.5.0 , ≤ 7.5.0 UP 15 Interim Fix 005 (semver)
    cpe:2.3:a:ibm:qradar:7.6.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:qradar:7.6.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:qradar:7.5.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:qradar:7.5.0up15:interim_fix_005:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-8396 (GCVE-0-2026-8396)

Vulnerability from cvelistv5 – Published: 2026-07-17 12:20 – Updated: 2026-07-17 12:55
VLAI
Title
XXE in Netcad's NetGIS
Summary
Improper restriction of XML external entity reference vulnerability in Netcad Software Inc. NetGIS allows Serialized Data External Linking. This issue affects NetGIS: from 5.0.66 before 7.2.2.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-17 12:54 UTC
CWE
  • CWE-611 - Improper restriction of XML external entity reference
Assigner
References
Impacted products
Vendor Product Version
Netcad Software Inc. NetGIS Affected: 5.0.66 , < 7.2.2 (custom)
Create a notification for this product.
Date Public
2026-07-17 12:15
Show details on NVD website
To clipboard 

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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
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
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-09 16:01 UTC
CWE
  • CWE-611 - Improper restriction of XML external entity reference
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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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
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)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-29 13:40 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
NSA GRASSMARLIN Affected: All versions
Create a notification for this product.
Credits
Grady DeRosa reported this vulnerability to CISA.
Show details on NVD website
To clipboard 

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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
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
7 (High)
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-22 15:51 UTC
CWE
  • CWE-416 - Use after free
  • CWE-611 - Improper Restriction of XML External Entity Processing
Assigner
References
Impacted products
Vendor Product Version
GNOME libxml2 Affected: 2.9.11 , < 2.11.0 (semver)
Create a notification for this product.
Credits
Geoffrey Humphreys
Show details on NVD website
To clipboard 

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CVE-2026-6501 (GCVE-0-2026-6501)

Vulnerability from cvelistv5 – Published: 2026-05-04 14:26 – Updated: 2026-05-04 15:32
VLAI
Summary
Improper restriction of XML external entity reference vulnerability in ILM Informatique jOpenDocument allows Data Serialization External Entities Blowup. This issue affects jOpenDocument: 1.5.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-04 15:32 UTC
CWE
  • CWE-611 - Improper restriction of XML external entity reference
Assigner
References
Impacted products
Date Public
2026-05-04 14:20
Credits
Dominique Righetto
Show details on NVD website
To clipboard 

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CVE-2026-4980 (GCVE-0-2026-4980)

Vulnerability from cvelistv5 – Published: 2026-03-27 14:50 – Updated: 2026-04-06 19:48
VLAI
Title
Improper Restriction of XML External Entity Reference in Inkscape
Summary
A local file disclosure vulnerability in the XInclude processing component of Inkscape 1.1 before 1.3 allows a remote attacker to read local files via a crafted SVG file containing malicious xi:include tags.
Severity
6.3 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-27 15:12 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version
Inkscape Inkscape Affected: 1.1 , < 1.3 (semver)
Create a notification for this product.
Credits
VK (previously elttam) https://github.com/me0wday
Show details on NVD website
To clipboard 

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CVE-2026-4374 (GCVE-0-2026-4374)

Vulnerability from cvelistv5 – Published: 2026-04-01 01:06 – Updated: 2026-09-22 17:50
VLAI
Title
Improper Restriction of XML External Entity Reference vulnerability in RTI Connext Professional (Recording Service,Routing Service,Queueing Service,Cloud Discovery Service,Observability Collector) allows Serialized Data External Linking, Data Serializat...
Summary
Improper Restriction of XML External Entity Reference vulnerability in RTI Connext Professional (Recording Service,Routing Service,Queueing Service,Cloud Discovery Service,Observability Collector) allows Serialized Data External Linking, Data Serialization External Entities Blowup. This issue affects Connext Professional: from 7.4.0 before 7.7.0, from 7.0.0 before 7.3.1.1, from 6.1.0 before 6.1.2.34, from 6.0.0 before 6.0.*, from 5.3.0 before 5.3.*.
Severity
8.8 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N
7 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-01 14:23 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version
RTI Connext Professional Affected: 7.4.0 , < 7.7.0 (custom)
Affected: 7.0.0 , < 7.3.1.1 (custom)
Affected: 6.1.0 , < 6.1.2.34 (custom)
Affected: 6.0.0 , < 6.0.* (custom)
Affected: 5.3.0 , < 5.3.* (custom)
    cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*
    cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*
    cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*
    cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*
    cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-03-25 17:31
Show details on NVD website
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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.

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