CVE-2020-26290

Source

https://nvd.nist.gov/vuln/detail/CVE-2020-26290

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-26290.json

Aliases

• CVE-2020-15216
• CVE-2020-27847
• GHSA-2x32-jm95-2cpx
• GHSA-m9hp-7r99-94h5
• GHSA-q547-gmf8-8jr7
• GO-2020-0050
• GO-2021-0056
• GO-2022-0409

Related

• GO-2020-0050

Published

2020-12-28T20:15:12Z

Modified

2023-11-29T08:19:07.084182Z

Details

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

• https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5
• https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-attributes.md
• https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-directives.md
• https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.md
• https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7
• https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/
• https://github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8
• https://github.com/dexidp/dex/releases/tag/v2.27.0