CVE-2025-47949

samlify SAML Signature Wrapping attack

State: Published
Severity: 9.9 Critical
Published: May 19, 2025
Updated: May 20, 2025
Reserved: May 14, 2025

Description

samlify is a Node.js library for SAML single sign-on. A Signature Wrapping attack has been found in samlify prior to version 2.10.0, allowing an attacker to forge a SAML Response to authenticate as any user. An attacker would need a signed XML document by the identity provider. Version 2.10.0 fixes the issue.

Scores

CVSS	Score	Vector	Source
4.0	9.9 Critical	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N	GitHub_M

Weaknesses

CWE-347 Improper Verification of Cryptographic Signature

Affected Products

Product	Versions
samlifytngan	< 2.10.0Affected

References

https://github.com/tngan/samlify/security/advisories/GHSA-r683-v43c-6xqv
https://github.com/tngan/samlify/commit/115679acd89f0a37ea3ebd8fff7db54fca3e8af3

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