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TI-2026-85153 Aliases CVE-2026-10859GHSA-6fmg-55h8-722v

Deserialization flaw in IBM MQ XMS .NET client allows code execution

Priority LOW 35Published · Updated

Key facts

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

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

Summary

IBM MQ 9.2.0.0 through 9.2.0.44 LTS, 9.3.0.0 through 9.3.0.42 LTS, 9.4.0.0 through 9.4.0.26 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 through 10.0.0.5 LTS and CD are affected. Insecure deserialization of ObjectMessage payloads lets an authenticated attacker execute arbitrary code on consumer applications over the network with low privileges.

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

Description from the CNA

IBM MQ 9.2.0.0 through 9.2.0.44 LTS, 9.3.0.0 through 9.3.0.42 LTS, 9.4.0.0 through 9.4.0.26 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 through 10.0.0.5 LTS and CD could allow an authenticated attacker to execute arbitrary code on consumer applications due to insecure deserialization of ObjectMessage payloads.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00328 26th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
IBMMQ9.2.0.0 – 9.2.0.44; 9.3.0.0 – 9.3.0.42; 9.4.0.0 – 9.4.0.26; 9.4.0.0 – 9.4.5.1; 10.0.0.0 – 10.0.0.5—No fix listedCNA
  • MQ VendorIBM Affected 9.2.0.0 – 9.2.0.44; 9.3.0.0 – 9.3.0.42; 9.4.0.0 – 9.4.0.26; 9.4.0.0 – 9.4.5.1; 10.0.0.0 – 10.0.0.5 Fixed in — No fix listed CNA

CPE names CNA · 3

CPEVersionsRoleVendor
cpe:2.3:a:ibm:mq:9.2.0.0:*:*:*:*:*:*:*9.2.0.0—IBM
cpe:2.3:a:ibm:mq:9.3.0.0:*:*:*:*:*:*:*9.3.0.0—IBM
cpe:2.3:a:ibm:mq:9.4.0.0:*:*:*:*:*:*:*9.4.0.0—IBM
  • cpe:2.3:a:ibm:mq:9.2.0.0:*:*:*:*:*:*:* Versions 9.2.0.0 — ·IBM
  • cpe:2.3:a:ibm:mq:9.3.0.0:*:*:*:*:*:*:* Versions 9.3.0.0 — ·IBM
  • cpe:2.3:a:ibm:mq:9.4.0.0:*:*:*:*:*:*:* Versions 9.4.0.0 — ·IBM

Remediation

The sources list no fixed version for IBM MQ.

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

Timeline

  1. 2026-11-04 Threatist record created from CVE-2026-10859
  2. 2026-11-04 Alias added: GHSA-6fmg-55h8-722v
  3. 2026-11-06 Priority changed: MEDIUM → LOW
  4. 2026-11-06 CISA SSVC decision points changed
  5. 2026-11-06 CISA SSVC decision points changed

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