league/commonmark has an embed extension allowed_domains bypass
Résumé
league/commonmark has an embed extension allowed_domains bypass
Description d'origine
La description telle que publiée par la source (souvent en anglais).
league/commonmark is a PHP Markdown parser. From version 2.3.0 to before version 2.8.2, the DomainFilteringAdapter in the Embed extension is vulnerable to an allowlist bypass due to a missing hostname boundary assertion in the domain-matching regex. An attacker-controlled domain like youtube.com.evil passes the allowlist check when youtube.com is an allowed domain. This issue has been patched in version 2.8.2.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
État des correctifs par distribution
Paquets corrigés publiés par chaque distribution pour cette CVE
- Debian DEBIAN-CVE-2026-33347 php-league-commonmark
- Ubuntu UBUNTU-CVE-2026-33347 php-league-commonmark Corrigé dans: 1.3.1-1ubuntu2+esm1
Références
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com
- web github.com