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Vulnerabilities

Vulnerability · CVE-2026-103499

IBM security advisory (AV26-1040)

Published Oct 14, 2026 · IBM security advisory (AV26-1040)

Check if you run it

No confirmed exploitation is on record for CVE-2026-103499. EPSS is 0.40%. Act only if a listed version of IBM security advisory (AV26-1040) is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (IBM security advisory (AV26-1040)).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.40%
Remediation
Not established
Affected products
See sources for product scope

Serial number: AV26-1040 Date: October 14, 2026 As of October 13, 2026, IBM is affected by vulnerabilities in the following products: WebSphere Application Server Prior to or equal to 8.5 Prior to or equal to 9.0 WebSphere Application Server - Liberty Prior to or equal to 26.0.0.10 mcp-context-forge Prior to or equal to 1.0.2 The Cyber Centre encourages users and administrators to review the provided web links and apply any necessary updates as they become available. Security Bulletin: IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a denial of service

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-103499

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-103499. EPSS is 0.40%. Act only if a listed version of IBM security advisory (AV26-1040) is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.40%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 14, 2026 · Canadian Centre for Cyber Security

    Detected

    Serial number: AV26-1040 Date: October 14, 2026 As of October 13, 2026, IBM is affected by vulnerabilities in the following products: WebSphere Application Server Prior to or equal to 8.5 Prior to or equal to 9.0 WebSphere Application Server - Liberty Prior to or equal to 26.0.0.10 mcp-context-forge Prior to or equal to 1.0.2 The Cyber Centre encourages users and administrators to review the provi

Sources

  • Canadian Centre for Cyber SecurityGovernment advisoryCVE-2026-103499

    Serial number: AV26-1040 Date: October 14, 2026 As of October 13, 2026, IBM is affected by vulnerabilities in the following products: WebSphere Application Server Prior to or equal to 8.5 Prior to or equal to 9.0 WebSphere Application Server - Liberty Prior to or equal to 26.0.0.

    cyber.gc.ca
  • CVE.orgVulnerability recordCVE-2026-103499

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-103499

    30-day exploitation probability 0.4%

    first.org

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.