Improper Verification of Cryptographic Signature Affecting github.com/russellhaering/gosaml2 package, versions <0.11.0
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- published19 Mar 2026
- disclosed18 Mar 2026
- creditxclow3n
Introduced: 18 Mar 2026
CVE NOT AVAILABLE CWE-347 (opens in a new tab)Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade github.com/russellhaering/gosaml2 to version 0.11.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the ValidateEncodedLogoutRequestPOST function. An attacker can terminate arbitrary user sessions by sending a forged, unsigned SAML LogoutRequest to the Single Logout endpoint, even when signature validation is enabled.