CVE-2026-118664
CVE-2026-118664 · decode-uri-component: Denial of service via quadratic replacement of percent-encoded runs
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
decode-uri-component provides a more robust alternative to decodeURIComponent. Prior to 0.5.1, decodeUriComponent in index.js falls back to customDecodeURIComponent after native decoding throws, and the fallback collects every distinct percent-encoded run before performing a full-string regular-expression replacement for each entry. Malformed input containing many distinct runs can therefore make both the number of replacements and the scanned input length grow together, causing quadratic CPU consumption and blocking the Node.js event loop; request-body inputs can reach the demonstrated size, while ordinary URL header limits reduce the practical delay. This issue is fixed in version 0.5.1.
CVSS 8.2 · Alta · EPSS 0,3% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: node
Productos y versiones afectados
decode-uri-component
- Versiones
- < 0.5.1: Afectada
Sin corrección publicada
decode-uri-component npm
- Intervalos de versiones afectados
- SEMVER: < 0.5.1
Actualiza a 0.5.1
Fuentes originales
- https://github.com/SamVerschueren/decode-uri-component/security/advisories/GHSA-qr28-fpjm-wq7f
- https://github.com/SamVerschueren/decode-uri-component/commit/fad01d65b93bd3f2f0dc32dfd8d57a38b57bc608
- https://github.com/SamVerschueren/decode-uri-component/releases/tag/v0.5.1
- https://nvd.nist.gov/vuln/detail/CVE-2026-118664