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CVE-2025-29775GHSA-X3M8-899R-F7C3

xml-crypto Vulnerable to XML Signature Verification Bypass via DigestValue Comment

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.0.1, 3.2.1, 2.1.6
1 proof of concept on GitHub
  • Exploitation: poc
  • Automatable: yes
  • Technical impact: total

Summary

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 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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: yes · Technical impact: total

  3. Record last updated
  4. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • node-saml xml-crypto

    From 4.0.0 · fixed in 6.0.1; From 3.0.0 · fixed in 3.2.1; fixed in 2.1.6

  • xml-cryptonpm

    From 4.0.0 · fixed in 6.0.1

  • xml-cryptonpm

    From 3.0.0 · fixed in 3.2.1

  • xml-cryptonpm

    fixed in 2.1.6

References 8

GitHub · node-saml/xml-crypto

GitHub · ethicalPap/CVE-2025-29775