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CVE-2026-93907

IBM WebSphere Application Server is affected by a bypass authentication vulnerability

IBM WebSphere Application ServerWeb servers
Open in ThreatlineRecord JSON
CVSS
8.1High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.34%Chance of exploitation activity in the next 30 days, higher than 26% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published13 Oct 2026Updated 14 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Description

IBM WebSphere Application Server 8.5, and 9.0 could allow a remote attacker to bypass authentication by exploiting a flaw in the CSIv2 inbound propagation handler.

Text from CVE List

Affected versions 2

  • WebSphere Application Serveraffected: 8.5CVE List
  • WebSphere Application Serveraffected: 9.0CVE List

References 1