CVE-2025-29774

xml-crypto is an XML digital signature and encryption library for Node.js. An attacker may be able to exploit a vulnerability in versions prior to 6.0.1, 3.2.1, and 2.1.6 to bypass authentication or authorization mechanisms in systems that rely on xml-crypto for verifying signed XML documents. The vulnerability allows an attacker to modify a valid signed XML message in a way that still passes signature verification checks. For example, it could be used to alter critical identity or access control attributes, enabling an attacker with a valid account to escalate privileges or impersonate another user. Users of versions 6.0.0 and prior should upgrade to version 6.0.1 to receive a fix. Those who are still using v2.x or v3.x should upgrade to patched versions 2.1.6 or 3.2.1, respectively.

• CWE-347

• https://github.com/node-saml/xml-crypto/commit/28f92218ecbb8dcbd238afa4efbbd50302aa9aed
• https://github.com/node-saml/xml-crypto/commit/886dc63a8b4bb5ae1db9f41c7854b171eb83aa98
• https://github.com/node-saml/xml-crypto/commit/8ac6118ee7978b46aa56b82cbcaa5fca58c93a07
• https://github.com/node-saml/xml-crypto/releases/tag/v2.1.6
• https://github.com/node-saml/xml-crypto/releases/tag/v3.2.1
• https://github.com/node-saml/xml-crypto/releases/tag/v6.0.1
• https://github.com/node-saml/xml-crypto/security/advisories/GHSA-9p8x-f768-wp2g
• https://workos.com/blog/samlstorm

Published

Mar 14, 2025

Last Modified

Jun 17, 2026

Status

Deferred

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