/
DirectorySecurity AdvisoriesPricing
Sign in
Security Advisories

CVE-2020-27847

Published

Last updated

NVD

https://nvd.nist.gov/vuln/detail/CVE-2020-27847

Severity

9.8

Critical

CVSS V3

Description

A vulnerability exists in the SAML connector of the github.com/dexidp/dex library used to process SAML Signature Validation. This flaw allows an attacker to bypass SAML authentication. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. This flaw affects dex versions before 2.27.0.

References

  • https://images.chainguard.dev/security/CGA-qjrf-w56f-p6hw
  • https://github.com/advisories/GHSA-2x32-jm95-2cpx
  • https://bugzilla.redhat.com/show_bug.cgi?id=1907732
  • https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5
  • https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/

Affected packages

The trusted source for open source

Talk to an expert
© 2025 Chainguard. All Rights Reserved.
PrivacyTerms

Product

Chainguard ContainersChainguard LibrariesChainguard VMsIntegrationsPricing

Solutions

FedRAMPPCI DSSCMMC 2.0Golden ImagesCVE RemediationPublic Sector

Customers

Customer StoriesChainguard Reviews

Resources

Events & WebinarsSupply Chain Security 101Chainguard CoursesDocumentationTrust CenterChainguard Slack Community

Company

About UsBlogPartnersNewsroomCareersLegal