CVE-2025-47949 CRITICAL

CVE-2025-47949: samlify SAML Signature Wrapping attack

Vendor Tngan
Product samlify
Weakness CWE-347
Published May 19, 2025
Last update May 20, 2025
View on NVD All CVEs

CVSS base score

9.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 19, 2025 CVE published
May 20, 2025 Record updated