module: github.com/crewjam/saml
additional_packages:
  - module: github.com/crewjam/saml
    package: github.com/crewjam/saml/samlidp
    versions:
      - fixed: v0.4.3
  - module: github.com/crewjam/saml
    package: github.com/crewjam/saml/samlsp
    versions:
      - fixed: v0.4.3
versions:
  - fixed: v0.4.3
description: |
    Due to the behavior of encoding/xml, a crafted XML document may cause
    XML Digital Signature validation to be entirely bypassed, causing an
    unsigned document to appear signed.
published: 2021-04-14T20:04:52Z
cves:
  - CVE-2020-27846
symbols:
  - IdpAuthnRequest.Validate
  - ServiceProvider.ParseXMLResponse
  - ServiceProvider.ValidateLogoutResponseForm
  - ServiceProvider.ValidateLogoutResponseRedirect
derived_symbols:
  - IdentityProvider.ServeSSO
  - ServiceProvider.ParseResponse
  - ServiceProvider.ValidateLogoutResponseRequest
links:
    commit: https://github.com/crewjam/saml/commit/da4f1a0612c0a8dd0452cf8b3c7a6518f6b4d053
    context:
      - https://github.com/crewjam/saml/security/advisories/GHSA-4hq8-gmxx-h6w9