# CVE-2026-32313: xmlseclibs: Missing AES-GCM Authentication Tag Validation on Encrypted Nodes Allows for Unauthorized Decryption

Source: https://junglewise.ai/threats/cve-2026-32313-xmlseclibs-missing-aes-gcm-authentication-tag-validation-on  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-03-13  
License: CC BY 4.0 with a link back

CVE-2026-32313 · Severity: low · CVSS 3.1 · Published 2026-03-13

xmlseclibs: Missing AES-GCM Authentication Tag Validation on Encrypted Nodes Allows for Unauthorized Decryption

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

## Quick answers

**Is CVE-2026-32313 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-32313 being exploited in the wild.

**How severe is CVE-2026-32313?** Low severity, with a CVSS score of 3.1, published 13 March 2026.

**Which products and versions are affected?** robrichards/xmlseclibs (Packagist) ECOSYSTEM:introduced=0,fixed=3.1.5.

**Is there a fix for CVE-2026-32313?** Yes. robrichards/xmlseclibs (Packagist): upgrade to 3.1.5 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2026-32313?** 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 3.1.5 or later

  ```sh
  composer require robrichards/xmlseclibs:^3.1.5
  ```


## Affected products

- robrichards/xmlseclibs (Packagist) ECOSYSTEM:introduced=0,fixed=3.1.5

## Identifiers

- CVE-2026-32313
- GHSA-4v26-v6cg-g6f9

## Related threats

- [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)
- [Signature validation bypass in XmlSecLibs](https://junglewise.ai/threats/cve-2019-3465-signature-validation-bypass-in-xmlseclibs)