CVE-2026-89042

critical

passport-saml-encrypted through 0.1.13 makes SAML signature verification conditional on an optional cert option, allowing attackers to bypass authentication by…

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

9.1

9.1 (CVSS v3.1)

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

Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)

Timeline (UTC)

Published: 2026-09-10 18:18

Modified: 2026-09-11 21:17

NVD status: Deferred

Last synced 1 day ago

Verified against the source API 2026-10-27 06:52 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

Not reported by the source (unknown — not "none").

Weakness classification (CWE)

CWE-347

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

No vendor advisory or patch reference tagged by NVD. Check the references below.

References

https://github.com/krakenjs/passport-saml-encrypted disclosure@vulncheck.com
https://github.com/krakenjs/passport-saml-encrypted/blob/v0.1.13/lib/saml.js#L296 disclosure@vulncheck.com
https://github.com/krakenjs/passport-saml-encrypted/blob/v0.1.13/lib/saml.js#L321 disclosure@vulncheck.com
https://github.com/krakenjs/passport-saml-encrypted/issues/29 disclosure@vulncheck.com
https://www.vulncheck.com/advisories/passport-saml-encrypted-through-0.1.13-authentication... disclosure@vulncheck.com

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 06:52 UTC · record ↗

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