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TI-2026-85157 Aliases CVE-2026-12538GHSA-mp2j-4j6c-q69j

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Priority LOW 24CWE-124Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · None · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

IBM MQ Appliance versions 9.4.0.0 through 9.4.0.26, 9.4.1.0 through 9.4.5.3, and 10.0.0.1 through 10.0.0.5 are affected. Improper validation of message header structure length fields lets an authenticated attacker obtain sensitive information or cause a denial of service. The flaw is classified as CWE-124 (Buffer Underwrite). An attacker needs low privileges and network access.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

IBM MQ 9.4.0.0 to 9.4.0.26, 9.4.1.0 to 9.4.5.3, and 10.0.0.1 to 10.0.0.5 could allow an authenticated attacker to obtain sensitive information or cause a denial of service due to improper validation of message header structure length fields.

Why it matters now

EPSS 0.00333 26th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
IBMMQ Appliance9.4.0.0 – 9.4.0.26; 9.4.1.0 – 9.4.5.3; 10.0.0.1 – 10.0.0.5—No fix listedCNA
  • MQ Appliance VendorIBM Affected 9.4.0.0 – 9.4.0.26; 9.4.1.0 – 9.4.5.3; 10.0.0.1 – 10.0.0.5 Fixed in — No fix listed CNA

CPE names CNA · 4

CPEVersionsRoleVendor
cpe:2.3:a:ibm:mq_appliance:9.4:*:*:*:*:*:*:*9.4—IBM
cpe:2.3:a:ibm:mq_appliance:9.4.0:*:*:*:*:*:*:*9.4.0—IBM
cpe:2.3:a:ibm:mq_appliance:9.4.0.0:*:*:*:*:*:*:*9.4.0.0—IBM
cpe:2.3:a:ibm:mq_appliance:9.4.1.0:*:*:*:*:*:*:*9.4.1.0—IBM
  • cpe:2.3:a:ibm:mq_appliance:9.4:*:*:*:*:*:*:* Versions 9.4 — ·IBM
  • cpe:2.3:a:ibm:mq_appliance:9.4.0:*:*:*:*:*:*:* Versions 9.4.0 — ·IBM
  • cpe:2.3:a:ibm:mq_appliance:9.4.0.0:*:*:*:*:*:*:* Versions 9.4.0.0 — ·IBM
  • cpe:2.3:a:ibm:mq_appliance:9.4.1.0:*:*:*:*:*:*:* Versions 9.4.1.0 — ·IBM

Remediation

The sources list no fixed version for IBM MQ Appliance.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Timeline

  1. 2026-11-04 Threatist record created from CVE-2026-12538
  2. 2026-11-04 Alias added: GHSA-mp2j-4j6c-q69j
  3. 2026-11-06 Priority changed: MEDIUM → LOW

References

Patch 1

  • TI-2026-08085 Unauthenticated Remote Code Execution via Auto-Login Bypass and Code Validation KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-23774 IBM Aspera Faspex code execution KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-03794 Improper authentication in IBM Data Risk Manager KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-03441 Code injection in IBM Planning Analytics KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-03639 Improper handling of exceptional conditions in Apache Struts KEVCVSS 3.1CRITICAL 9.8
  • TI-2015-06198 Serialized-object interfaces in certain IBM analytics, business solutions, cognitive, IT… KEVCVSS 3.1CRITICAL 9.8
See all 9711 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences