CVE-2026-13275: CWE-611 Improper Restriction of XML External Entity Reference in IBM MQ
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 Managed File Transfer could allow an authenticated attacker to read arbitrary files or perform server-side request forgery due to XML external entity injection in reply message processing.
AI Analysis
Technical Summary
This vulnerability arises from improper handling of XML external entities in IBM MQ's reply message processing. Specifically, versions 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 Managed File Transfer are affected. Exploitation requires authentication and can lead to disclosure of arbitrary files or SSRF attacks due to XML external entity injection.
Potential Impact
Successful exploitation allows an authenticated attacker to read arbitrary files on the server or perform server-side request forgery, potentially leading to information disclosure. The CVSS v3.1 score is 7.1 (high), reflecting network attack vector, low attack complexity, required privileges, no user interaction, and high confidentiality impact with limited integrity impact and no availability impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict access to IBM MQ to trusted users and monitor for suspicious activity involving XML processing. Follow IBM's official advisories for updates and remediation instructions.
CVE-2026-13275: CWE-611 Improper Restriction of XML External Entity Reference in IBM MQ
Description
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 Managed File Transfer could allow an authenticated attacker to read arbitrary files or perform server-side request forgery due to XML external entity injection in reply message processing.
CVSS v3.1
Score 7.1high
Affected software
IBM
MQ
pkg:maven/com.ibm.mq/mqcpe: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:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from improper handling of XML external entities in IBM MQ's reply message processing. Specifically, versions 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 Managed File Transfer are affected. Exploitation requires authentication and can lead to disclosure of arbitrary files or SSRF attacks due to XML external entity injection.
Potential Impact
Successful exploitation allows an authenticated attacker to read arbitrary files on the server or perform server-side request forgery, potentially leading to information disclosure. The CVSS v3.1 score is 7.1 (high), reflecting network attack vector, low attack complexity, required privileges, no user interaction, and high confidentiality impact with limited integrity impact and no availability impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict access to IBM MQ to trusted users and monitor for suspicious activity involving XML processing. Follow IBM's official advisories for updates and remediation instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-06-24T21:37:58.586Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa8646855bf5e2cf5a11f3e
Added to database: 09/14/2026, 21:17:28 UTC
Last enriched: 09/14/2026, 21:31:49 UTC
Last updated: 09/15/2026, 03:12:23 UTC
Views: 7
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