GoogleOSV:CVE-2020-26290CVE-2020-26290
Dex is a federated OpenID Connect provider written in Go. In Dex before version 2.27.0 there is a critical set of vulnerabilities which impacts users leveraging the SAML connector. The vulnerabilities enables potential signature bypass due to issues with XML encoding in the underlying Go library. The vulnerabilities have been addressed in version 2.27.0 by using the xml-roundtrip-validator from Mattermost (see related references).
References
github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8
github.com/dexidp/dex/releases/tag/v2.27.0
github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5
github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-attributes.md
github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-directives.md
github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.md
github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7
mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/
Related
