CVE-2026-117540
CVE-2026-117540 · svg-sanitizer before 1.1.0 Quadratic CPU-Exhaustion DoS via PHP-Tag Stripping Loop
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
svg-sanitizer from 0.5.3 before 1.1.0 contains a denial of service vulnerability in Sanitizer::sanitize() that repeatedly rescans the whole input while stripping PHP tags. Unauthenticated attackers can upload SVGs with many overlapping PHP tag openers and closers, forcing quadratic preg_replace passes that exhaust worker CPU for minutes.
CVSS 8.7 · Alta · Corrección disponible
- Publicación
- Actualización
Productos y versiones afectados
svg-sanitizer
- Versiones
- ≥ 0.5.3, < 1.1.0: Afectada (semver)
- 1.1.0: No afectada (semver)
Actualiza a 1.1.0
Fuentes originales
- https://github.com/darylldoyle/svg-sanitizer/security/advisories/GHSA-2v7c-jx29-jprp
- https://github.com/darylldoyle/svg-sanitizer/commit/9ba9001493f5da737759303f13bd965ebdaa778c
- https://www.vulncheck.com/advisories/svg-sanitizer-before-1.1.0-quadratic-cpu-exhaustion-dos-via-php-tag-stripping-loop
- https://nvd.nist.gov/vuln/detail/CVE-2026-117540