VULNERABILITY INTELLIGENCE
CVE-2020-26290
CVSS score9.3 CRITICAL
EPSS probability0.99%
CISA KEVNot currently listed
Published2020-12-28
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Description
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).
Weakness classification
- security-advisories@github.com: CWE-347
Primary references
- security-advisories@github.com — Patch, Third Party Advisory
- security-advisories@github.com — Third Party Advisory
- security-advisories@github.com — Third Party Advisory
- security-advisories@github.com — Not Applicable, Third Party Advisory
- security-advisories@github.com — Not Applicable, Third Party Advisory
- security-advisories@github.com — Not Applicable, Third Party Advisory
- security-advisories@github.com — Not Applicable, Third Party Advisory
- security-advisories@github.com — Not Applicable, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Not Applicable, Third Party Advisory