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PatchSiren cyber security CVE debrief

CVE-2026-13285 IBM CVE debrief

IBM MQ 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. The vulnerability affects IBM MQ deployments that process XML data from untrusted sources. Defenders should assess potential exposure and prioritize verification of IBM MQ usage and XML data processing. This vulnerability has the potential to impact memory resources and sensitive information.

Vendor
IBM
Product
MQ
CVSS
HIGH 7.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-14
Original CVE updated
2026-09-18
Advisory published
2026-09-14
Advisory updated
2026-09-18

Who should care

Defenders responsible for systems using IBM MQ, especially those processing XML data from untrusted sources, should assess potential exposure and prioritize verification.

Why it matters

Defenders should prioritize verifying exposure and assessing potential impact on systems using IBM MQ, especially those processing XML data from untrusted sources, due to the potential for sensitive information exposure and memory resource consumption.

  • Potential exposure of sensitive information
  • Possible memory resource consumption
  • Need for verification of IBM MQ usage and XML data processing

Technical summary

IBM MQ 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. The vulnerability is due to the lack of proper validation and sanitization of XML data. IBM MQ deployments that process XML data from untrusted sources are affected. Defenders should review XML data processing and ensure proper validation and sanitization to prevent potential exposure.

Defensive priority

Defenders should prioritize verifying exposure and assessing potential impact on systems using IBM MQ, especially those processing XML data from untrusted sources.

Recommended defensive actions

  • Verify if IBM MQ is used in the environment and assess potential exposure
  • Review XML data processing and ensure proper validation and sanitization
  • Monitor system resources for potential memory consumption issues

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. Further verification is needed to determine the extent of exposure and potential impact.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-13285 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-13285

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-13285 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-13285

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.