CVE-2026-117500: fallo de gravedad alta en HTTP-Body
HTTP::Body versions before 1.24_01 for Perl allow CPU exhaustion via regex backtracking on the filename of a multipart upload
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.5epss 0.3%
HTTP::Body versions before 1.24_01 for Perl allow CPU exhaustion via regex backtracking on the filename of a multipart upload.
For every file part, the multipart parser finds the suffix of the uploaded filename by matching the default $basename_regexp, qr/[^.]+(\.[^\\\/]+)$/, against the whole basename. A basename made of many dots and ending in a backslash makes the regex backtrack in time quadratic in its length.
A remote attacker can exhaust CPU with one request, as a basename of about 32 KB takes several seconds to match and every file part is matched separately.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Productos afectados
HTTP-BodyCVEs relacionadas — HTTP-Body
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-116135CRITICALHTTP::Body versions before 1.23_01 for Perl drop mixed-case percent escapes from urlencoded form fields instead of decoding themEPSS 0.3%CVE-2026-116132HIGHHTTP::Body versions before 1.23_01 for Perl leave the temporary file of an incomplete multipart upload on diskEPSS 0.3%CVE-2026-116134HIGHHTTP::Body versions before 1.23_01 for Perl allow memory exhaustion via an unbounded multipart part header blockEPSS 0.3%CVE-2026-116133HIGHHTTP::Body versions before 1.23_01 for Perl allow CPU exhaustion via quadratic rescanning of a multipart body with a missing or malformed boundaryEPSS 0.3%CVE-2026-116131MEDIUMHTTP::Body versions before 1.23_01 for Perl allow memory and temporary file exhaustion via an unlimited number of form fields and multipart partsEPSS 0.3%CVE-2026-116531CRITICALHTTP::Body versions before 1.23_01 for Perl lose track of chunk boundaries in chunked request bodies when a read ends inside a chunkEPSS 0.3%