# CVE-2019-3465: Signature validation bypass in XmlSecLibs

Source: https://junglewise.ai/threats/cve-2019-3465-signature-validation-bypass-in-xmlseclibs  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2019-11-08  
License: CC BY 4.0 with a link back

CVE-2019-3465 · Severity: low · CVSS 3.1 · Published 2019-11-08

Signature validation bypass in XmlSecLibs

Technologies: [robrichards/xmlseclibs (Packagist)](https://junglewise.ai/threats/technologies/robrichards-xmlseclibs). Vendors: [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is CVE-2019-3465 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2019-3465 being exploited in the wild.

**How severe is CVE-2019-3465?** Low severity, with a CVSS score of 3.1, published 8 November 2019.

**Which products and versions are affected?** robrichards/xmlseclibs (Packagist) ECOSYSTEM:introduced=3.0.0,fixed=3.0.4.

**Is there a fix for CVE-2019-3465?** Yes. robrichards/xmlseclibs (Packagist): upgrade to 3.0.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2019-3465?** Check whether you run robrichards/xmlseclibs (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- robrichards/xmlseclibs (Packagist): upgrade to 3.0.4 or later

  ```sh
  composer require robrichards/xmlseclibs:^3.0.4
  ```


## Affected products

- robrichards/xmlseclibs (Packagist) ECOSYSTEM:introduced=3.0.0,fixed=3.0.4

## Identifiers

- CVE-2019-3465
- GHSA-pqm6-cgwr-x6pf

## Related threats

- [xmlseclibs: Missing AES-GCM Authentication Tag Validation on Encrypted Nodes Allows for Unauthorized Decryption](https://junglewise.ai/threats/cve-2026-32313-xmlseclibs-missing-aes-gcm-authentication-tag-validation-on)
- [robrichards/xmlseclibs has an Libxml2 Canonicalization error which can bypass Digest/Signature validation](https://junglewise.ai/threats/cve-2025-66578-robrichards-xmlseclibs-has-an-libxml2-canonicalization-error)
- [robrichards/xmlseclibs XPath injection](https://junglewise.ai/threats/robrichards-xmlseclibs-xpath-injection-a4df9c73)