Uncaught Exception Affecting robrichards/xmlseclibs package, versions <3.1.4
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PHP-ROBRICHARDSXMLSECLIBS-14236429
- published12 Dec 2025
- disclosed9 Dec 2025
- creditd0ge
Introduced: 9 Dec 2025
NewCVE-2025-66578 (opens in a new tab)How to fix?
Upgrade robrichards/xmlseclibs to version 3.1.4 or higher.
Overview
robrichards/xmlseclibs is a PHP library for XML Security.
Affected versions of this package are vulnerable to Uncaught Exception in the form of improper handling of canonicalization failures. An attacker can bypass signature or digest validation by submitting specially crafted invalid XML input that causes the process to return an empty string, leading to incorrect digest computation and validation.