Read the docs
TI-2026-08787 Aliases CVE-2026-10027GHSA-52gg-3863-7xg6

IBM MQ queue manager is vulnerable to unauthenticated remote code execution

Priority MEDIUM 44CWE-787Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

IBM MQ could allow a remote attacker to cause a denial of service or execute arbitrary code due to a buffer overflow when processing malformed compressed data on channels configured with compression enabled.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00793 56th 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
IBMMQ9.1.0.0 – 9.1.0.37 LTS; 9.2.0.0 – 9.2.0.43 LTS; 9.3.0.0 – 9.3.0.41 LTS; 9.3.0.0 – 9.3.5.1 CD; 9.4.0.0 – 9.4.0.25 LTS; 9.4.0.0 – 9.4.5.1 CD; 10.0.0.0—No fix listedCNA
  • MQ VendorIBM Affected 9.1.0.0 – 9.1.0.37 LTS; 9.2.0.0 – 9.2.0.43 LTS; 9.3.0.0 – 9.3.0.41 LTS; 9.3.0.0 – 9.3.5.1 CD; 9.4.0.0 – 9.4.0.25 LTS; 9.4.0.0 – 9.4.5.1 CD; 10.0.0.0 Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:*9.1.0.0 – 9.1.0.37; 9.2.0.0 – 9.2.0.43; 9.3.0.0 – 9.3.0.41VulnerableIBM
cpe:2.3:a:ibm:mq:*:*:*:*:continuous_delivery:*:*:*9.3.0.0 – 9.3.5.1VulnerableIBM
cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:*9.4.0.0 – 9.4.0.25VulnerableIBM
cpe:2.3:a:ibm:mq:*:*:*:*:continuous_delivery:*:*:*9.4.0.0 – 9.4.5.1VulnerableIBM
cpe:2.3:a:ibm:mq:10.0.0.0:*:*:*:continuous_delivery:*:*:*10.0.0.0VulnerableIBM
  • cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:* Versions 9.1.0.0 – 9.1.0.37; 9.2.0.0 – 9.2.0.43; 9.3.0.0 – 9.3.0.41 Vulnerable ·IBM
  • cpe:2.3:a:ibm:mq:*:*:*:*:continuous_delivery:*:*:* Versions 9.3.0.0 – 9.3.5.1 Vulnerable ·IBM
  • cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:* Versions 9.4.0.0 – 9.4.0.25 Vulnerable ·IBM
  • cpe:2.3:a:ibm:mq:*:*:*:*:continuous_delivery:*:*:* Versions 9.4.0.0 – 9.4.5.1 Vulnerable ·IBM
  • cpe:2.3:a:ibm:mq:10.0.0.0:*:*:*:continuous_delivery:*:*:* Versions 10.0.0.0 Vulnerable ·IBM

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-10027
  2. 2026-10-03 Alias added: GHSA-52gg-3863-7xg6
  3. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Patch 1

  • TI-2020-03985 Deserialization of untrusted data in IBM MQ CVSS 3.1CRITICAL 9.8
  • TI-2022-06772 XML external entity injection in IBM MQ CVSS 3.1CRITICAL 9.1
  • TI-2026-09821 IBM MQ queue manager is vulnerable to remote code execution CVSS 3.1HIGH 8.8
  • TI-2026-09820 IBM MQ queue manager is vulnerable to remote code execution CVSS 3.1HIGH 8.8
  • TI-2026-09317 IBM MQ queue manager is vulnerable to remote code execution CVSS 3.1HIGH 8.8
  • TI-2026-09095 IBM MQ queue manager is vulnerable to remote code execution CVSS 3.1HIGH 8.8
See all 53 →

Sources

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