Read the docs

Signature verification bypass in IBM WebSphere Application Server

Priority LOW 39CWE-325Published · Updated

Key facts

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

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

Summary

IBM WebSphere Application Server Liberty from 17.0.0.3 through 26.0.0.10 and IBM WebSphere Application Server 8.5 and 9.0 are affected. Improper verification of a cryptographic signature (CWE-325) lets a remote attacker bypass signature verification. The attack complexity is high, and the attacker needs no privileges and no user interaction.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.10 and IBM WebSphere Application Server 8.5, and 9.0 could allow a remote attacker to bypass cryptographic signature verification due to improper verification of cryptographic signature.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00213 11th 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 Server - Liberty17.0.0.3 – 26.0.0.10—No fix listedCNA
IBMWebSphere Application Server8.5; 9.0—No fix listedCNA
  • WebSphere Application Server - Liberty VendorIBM Affected 17.0.0.3 – 26.0.0.10 Fixed in — No fix listed CNA
  • WebSphere Application Server VendorIBM Affected 8.5; 9.0 Fixed in — No fix listed CNA

CPE names CNA · 6

CPEVersionsRoleVendor
cpe:2.3:a:ibm:websphere_application_server_liberty:17.0.0.3:*:*:*:*:*:*:*17.0.0.3—IBM
cpe:2.3:a:ibm:websphere_application_server_liberty:26.0.0.10:*:*:*:*:*:*:*26.0.0.10—IBM
cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*8.5—IBM
cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*8.5.0—IBM
cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*9.0—IBM
cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*9.0.0—IBM
  • cpe:2.3:a:ibm:websphere_application_server_liberty:17.0.0.3:*:*:*:*:*:*:* Versions 17.0.0.3 — ·IBM
  • cpe:2.3:a:ibm:websphere_application_server_liberty:26.0.0.10:*:*:*:*:*:*:* Versions 26.0.0.10 — ·IBM
  • cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:* Versions 8.5 — ·IBM
  • cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:* Versions 8.5.0 — ·IBM
  • cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:* Versions 9.0 — ·IBM
  • cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:* Versions 9.0.0 — ·IBM

Remediation

The sources list no fixed version for IBM WebSphere Application Server Liberty. The sources list no fixed version for IBM WebSphere Application Server.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-101294
  2. 2026-10-13 Alias added: GHSA-7vhc-cw8q-ggpm
  3. 2026-10-14 CISA SSVC decision points changed
  4. 2026-10-14 Priority changed: MEDIUM → LOW

References

  • 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