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

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00271.

Exploitation none

Automatable yes

Technical Impact partial

Affected Vendors & Products

No data.

No data.

No data.

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No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/krakenjs/passport-saml-encrypted cve-icon cve-icon
https://github.com/krakenjs/passport-saml-encrypted/blob/v0.1.13/lib/saml.js#L296 cve-icon cve-icon
https://github.com/krakenjs/passport-saml-encrypted/blob/v0.1.13/lib/saml.js#L321 cve-icon cve-icon
https://github.com/krakenjs/passport-saml-encrypted/issues/29 cve-icon cve-icon
https://www.vulncheck.com/advisories/passport-saml-encrypted-through-0.1.13-authentication-bypass-via-missing-signature-verification cve-icon cve-icon
History

Fri, 11 Sep 2026 23:45:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 10 Sep 2026 17:45:00 +0000

Type Values Removed Values Added
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.
Title passport-saml-encrypted through 0.1.13 Authentication Bypass via Missing Signature Verification
Weaknesses CWE-347
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-11T20:32:56.136Z

Reserved: 2026-09-10T16:45:04.646Z

Link: CVE-2026-89042

cve-icon Vulnrichment

Updated: 2026-09-11T17:09:28.801Z

cve-icon NVD

Status : Deferred

Published: 2026-09-10T18:18:15.910

Modified: 2026-09-11T21:17:56.573

Link: CVE-2026-89042

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-11T00:15:17Z

Weaknesses