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TI-2026-08176 Aliases CVE-2026-9311GHSA-gfh5-5q87-hr66

IBM WebSphere Application Server is affected by remote code execution

Priority MEDIUM 41CWE-94Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-94.

Summary

IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to remote code execution caused by the bypass of security controls.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00508 43rd 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
IBMWebSphere Application Server9.0 – 1.1.9.12; 8.5—No fix listedCNA
  • WebSphere Application Server VendorIBM Affected 9.0 – 1.1.9.12; 8.5 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:traditional:*:*:*8.5.0.0 to before 8.5.5.30; 9.0.0.0 to before 9.0.5.29VulnerableIBM
  • cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:traditional:*:*:* Versions 8.5.0.0 to before 8.5.5.30; 9.0.0.0 to before 9.0.5.29 Vulnerable ·IBM

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    IBM WebSphere Application Server — ibm.com/support/pages/node/7274733

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-08185 IBM WebSphere Application Server is affected by remote code executionPriority LOW 39
    Show all 2 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-9311
  2. 2026-10-03 Alias added: GHSA-gfh5-5q87-hr66
  3. 2026-10-24 EPSS moved to the 50th–90th percentile
  4. 2026-10-25 EPSS moved to the below the 50th percentile

References

Patch 1

  • TI-2015-06198 Serialized-object interfaces in certain IBM analytics, business solutions, cognitive, IT… KEVCVSS 3.1CRITICAL 9.8
  • TI-2010-00403 modules/arch/win32/mod_isapi.c in mod_isapi in the Apache HTTP Server 2.0.37 through… CVSS 2.0HIGH 10.0
  • TI-2019-03185 Deserialization of untrusted data in IBM WebSphere Application Server CVSS 3.1CRITICAL 9.8
  • TI-2020-03809 Deserialization of untrusted data in IBM WebSphere Application Server CVSS 3.1CRITICAL 9.8
  • TI-2025-24648 IBM WebSphere Application Server code execution CVSS 3.1CRITICAL 9.8
  • TI-2020-03807 Deserialization of untrusted data in IBM WebSphere Application Server CVSS 3.1CRITICAL 9.8
See all 502 →

Sources

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