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CVE-2025-46573GHSA-8GQJ-226H-GM8R

passport-wsfed-saml2 Has SAML Authentication Bypass via Attribute Smuggling

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 4.6.4
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

passport-wsfed-saml2 provides passport strategy for both WS-fed and SAML2 protocol. A vulnerability present starting in version 3.0.5 up to and including version 4.6.3 allows an attacker to impersonate any user during SAML authentication by tampering with a valid SAML response. This can be done by adding attributes to the response. Users are affected specifically when the service provider is using `passport-wsfed-saml2` and a valid SAML Response signed by the Identity Provider can be obtained. Version 4.6.4 contains a fix for the vulnerability.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • auth0 passport-wsfed-saml2

    From 3.0.5 · fixed in 4.6.4

  • passport-wsfed-saml2npm

    From 3.0.5 · fixed in 4.6.4

References 2

GitHub · auth0/passport-wsfed-saml2