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CVE-2026-89042
CRITICAL9.1
Published 2026-09-10 · Source disclosure@vulncheck.com
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.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE-347
References
- https://github.com/krakenjs/passport-saml-encrypted
- https://github.com/krakenjs/passport-saml-encrypted/blob/v0.1.13/lib/saml.js#L296
- https://github.com/krakenjs/passport-saml-encrypted/blob/v0.1.13/lib/saml.js#L321
- https://github.com/krakenjs/passport-saml-encrypted/issues/29
- https://www.vulncheck.com/advisories/passport-saml-encrypted-through-0.1.13-authentication-bypass-via-missing-signature-verification

