CVE-2026-89042

CriticalCVSS 9.1/10Last modified Sep 11, 2026

Description

passport-saml-encrypted through 0.1.13 makes SAML signature verification conditional on an optional cert option, allowing attackers to bypass authentication by submitting unsigned SAML responses. Attackers can post forged SAML responses with arbitrary NameID and attributes to the assertion consumer service endpoint to receive authenticated profiles without valid signatures.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Sep 10, 2026
Last modified
Sep 11, 2026
NVD status
Deferred

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CVE-2026-89042: Critical severity, CVSS 9.1 | Vulnix