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TI-2026-03834 Aliases CVE-2026-4410GHSA-crfv-r2fv-7458

IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a denial of service

Priority LOW 33CWE-400Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-400.

Summary

IBM WebSphere Application Server - Liberty 19.0.0.7 through 26.0.0.5 and IBM WebSphere Application Server 9.0, and 8.5 and WebSphere Application Server Liberty are vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume memory resources.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.005 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
Partial

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 - Liberty19.0.0.7 – 26.0.0.5—No fix listedCNA
IBMWebSphere Application Server9.0; 8.5—No fix listedCNA
  • WebSphere Application Server - Liberty VendorIBM Affected 19.0.0.7 – 26.0.0.5 Fixed in — No fix listed CNA
  • WebSphere Application Server VendorIBM Affected 9.0; 8.5 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:-:*:*:*8.5.0.0 – 8.5.5.29; 9.0.0.0 – 9.0.5.27VulnerableIBM
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:*19.0.0.7 – 26.0.0.5VulnerableIBM
  • cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:-:*:*:* Versions 8.5.0.0 – 8.5.5.29; 9.0.0.0 – 9.0.5.27 Vulnerable ·IBM
  • cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:* Versions 19.0.0.7 – 26.0.0.5 Vulnerable ·IBM

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-4410
  2. 2026-10-03 Alias added: GHSA-crfv-r2fv-7458
  3. 2026-10-16 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