modules:
  - module: github.com/crewjam/saml
    versions:
      - fixed: 0.4.3
    vulnerable_at: 0.4.2
    packages:
      - package: github.com/crewjam/saml
        symbols:
          - IdpAuthnRequest.Validate
          - ServiceProvider.ParseXMLResponse
          - ServiceProvider.ValidateLogoutResponseForm
          - ServiceProvider.ValidateLogoutResponseRedirect
        derived_symbols:
          - IdentityProvider.ServeSSO
          - ServiceProvider.ParseResponse
          - ServiceProvider.ValidateLogoutResponseRequest
      - package: github.com/crewjam/saml/samlidp
        symbols:
          - getSPMetadata
        derived_symbols:
          - Server.HandlePutService
      - package: github.com/crewjam/saml/samlsp
        symbols:
          - ParseMetadata
        derived_symbols:
          - FetchMetadata
          - Middleware.ServeHTTP
          - New
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
ghsas:
  - GHSA-4hq8-gmxx-h6w9
references:
  - fix: https://github.com/crewjam/saml/commit/da4f1a0612c0a8dd0452cf8b3c7a6518f6b4d053