CVE-2022-41912

crewjam/saml go library is vulnerable to signature bypass via multiple Assertion elements

State: Published
Severity: 9.1 Critical
Published: Nov 28, 2022
Updated: Apr 23, 2025
Reserved: Sep 30, 2022

Description

The crewjam/saml go library prior to version 0.4.9 is vulnerable to an authentication bypass when processing SAML responses containing multiple Assertion elements. This issue has been corrected in version 0.4.9. There are no workarounds other than upgrading to a fixed version.

Scores

CVSS	Score	Vector	Source
3.1	9.1 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N	GitHub_M

Weaknesses

CWE-287 Improper Authentication

Affected Products

Product	Versions
samlcrewjam	< 0.4.9Affected

References

https://github.com/crewjam/saml/security/advisories/GHSA-j2jp-wvqg-wc2g
https://github.com/crewjam/saml/commit/aee3fb1edeeaf1088fcb458727e0fd863d277f8b
http://packetstormsecurity.com/files/170356/crewjam-saml-Signature-Bypass.html

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