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Fencer Vulns
critical 9.1

CVE-2026-93909 json

IBM WebSphere Application Server Liberty is affected by an authentication bypass

published 2026-10-13 26 d ago modified 2026-10-22 17 d ago also EUVD-2026-100498

cvss
9.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits
0
none known

Summary

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.10 is vulnerable by an authentication bypass vulnerability when samlWeb-2.0 feature is enabled.

Patch / fix

  • ibm websphere_application_server 26.0.0.11

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
26 d ago

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

  • IBM WebSphere Application Server - Liberty

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.