CVE-2026-93909

IBM WebSphere Application Server Liberty is affected by an authentication bypass

At a glance

Severity: CRITICAL 9.1
EPSS: EPSS 0.34 % · percentile 27 (2026-10-27)
State: PUBLISHED
Published: 2026-10-13
Updated: 2026-10-14
Assigner: ibm
NVD status: Analyzed

Description

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.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	CRITICAL 9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N	ibm
CVSS 3.1	CRITICAL 9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N	NVD · psirt@us.ibm.com (Secondary)

Weaknesses (CWE)

CWE-384

European references

ENISA EUVD · EUVD-2026-100498
GCVE · GCVE-0-2026-93909

CERT-FR advisories

CERTFR-2026-AVI-1336 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:* ≥ 17.0.0.3 < 26.0.0.11

Affected products

Product	Versions
IBM · WebSphere Application Server - Liberty	affected 17.0.0.3 ≤ 26.0.0.10

References

https://www.ibm.com/support/pages/node/7292236

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD