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TI-2026-07596 Aliases CVE-2026-8646GHSA-gmfx-j9mc-3x8v

IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by multiple vulnerabilities

Priority MEDIUM 42CWE-444Published · Updated

Key facts

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

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

Summary

IBM WebSphere Application Server 9.0 and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.6 are vulnerable to HTTP request smuggling. A remote attacker could smuggle a specially crafted request to the application server thereby allowing the attacker to bypass security controls, spoof identity, escalate privilege, and expose sensitive information.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00588 48th 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 Server9.0.0 – 7.0.2 Interim Fix 035; 8.5.0 – 7.0.3 Interim Fix 017—No fix listedCNA
IBMWebSphere Application Server - Liberty17.0.0.3 – 26.0.0.6—No fix listedCNA
  • WebSphere Application Server VendorIBM Affected 9.0.0 – 7.0.2 Interim Fix 035; 8.5.0 – 7.0.3 Interim Fix 017 Fixed in — No fix listed CNA
  • WebSphere Application Server - Liberty VendorIBM Affected 17.0.0.3 – 26.0.0.6 Fixed in — No fix listed CNA

CPE configurations NVD · 8

CPEVersionsRoleVendor
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*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:*:*:*:*:liberty:*:*:*17.0.0.3 to before 26.0.0.7VulnerableIBM
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*not specified by NVDRunning onApple
cpe:2.3:o:ibm:aix:-:*:*:*:*:*:*:*not specified by NVDRunning onIBM
cpe:2.3:o:ibm:i:-:*:*:*:*:*:*:*not specified by NVDRunning onIBM
cpe:2.3:o:ibm:z\/os:-:*:*:*:*:*:*:*not specified by NVDRunning onIBM
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*not specified by NVDRunning onLinux
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:* Versions 8.5.0.0 to before 8.5.5.30; 9.0.0.0 to before 9.0.5.29 Vulnerable ·IBM
  • cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:* Versions 17.0.0.3 to before 26.0.0.7 Vulnerable ·IBM
  • cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple
  • cpe:2.3:o:ibm:aix:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
  • cpe:2.3:o:ibm:i:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
  • cpe:2.3:o:ibm:z\/os:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
  • cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

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, WebSphere Application Server - Liberty — ibm.com/support/pages/node/7276579

    3 records Highest priority Priority MEDIUM 2 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-07969 Uncontrolled resource consumption in IBM WebSphere Application ServerPriority MEDIUM 40
    • TI-2026-08181 IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by multiple vulnerabilitiesPriority LOW 34
    Show all 3 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-8646
  2. 2026-10-03 Alias added: GHSA-gmfx-j9mc-3x8v

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