CVE-2025-66578
robrichards/xmlseclibs has an Libxml2 Canonicalization error which can bypass Digest/Signature validation
En bref
- Source
- NVD
- EPSS
- EPSS 0.24 % · centile 15 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- GitHub_M
- Statut NVD
- Analyzed
Description
xmlseclibs is a library written in PHP for working with XML Encryption and Signatures. Versions 3.1.3 contain an authentication bypass vulnerability due to a flaw in the libxml2 canonicalization process during document transformation. When libxml2’s canonicalization is invoked on an invalid XML input, it may return an empty string rather than a canonicalized node. xmlseclibs then proceeds to compute the DigestValue over this empty string, treating it as if canonicalization succeeded. This issue is fixed in version 3.1.4. Workarounds include treating canonicalization failures (exceptions or nil/empty outputs) as fatal and aborting validation, and/or adding explicit checks to reject when canonicalize returns nil/empty or raises errors.
Faiblesses (CWE)
- CWE-248 — Exception non interceptée
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.0 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:L | GitHub_M |
| CVSS 3.1 | MEDIUM 6.0 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:L | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | NVD · nvd@nist.gov (Primary) |
Avis
- GHSA-c4cc-x928-vjw9 — robrichards/xmlseclibs has an Libxml2 Canonicalization error which can bypass Digest/Signature validation
Références européennes
- ENISA EUVD · EUVD-2025-201790
- GCVE · GCVE-0-2025-66578
Avis du CERT-FR
- CERTFR-2026-AVI-0367 — Multiples vulnérabilités dans Zabbix · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:xmlseclibs_project:xmlseclibs:*:*:*:*:*:*:*:*< 3.1.4
Produits affectés
| Produit | Versions |
|---|---|
| robrichards · xmlseclibs | affected < 3.1.4 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |