CVSS 4.0
9.3 criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:NCVE-2026-89042
Critical (9.3). EPSS 0.4% chance of exploitation in the next 30 days.
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.
Severity
CVSS 3.1
9.1 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-31)
- CWE
- CWE-347
- Published
- Modified
- Record from
- the NVD, synced
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