[MEDIUM] robrichards/xmlseclibs has an Libxml2 Canonicalization error which can bypass Digest/Signature validation

PKSA-pcdf-qvqm-w4tv CVE-2025-66578 GHSA-c4cc-x928-vjw9

Affected package: robrichards/xmlseclibs

Affected version: <=3.1.3

Reported by:
GitHub