{"id":"CVE-2026-116130","title":"HTTP::Parser::XS versions before 0.18 for Perl truncate PATH_INFO at an encoded NUL byte in parse_http_request","summary":"HTTP::Parser::XS versions before 0.18 for Perl truncate PATH_INFO at an encoded NUL byte in parse_http_request.\n\nThe XS parser URL-decodes the request path and measures the result with strlen(), so PATH_INFO ends at the first byte decode…","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","cvssSource":"adp","cwe":["CWE-626"],"product":"HTTP-Parser-XS","affected":["HTTP-Parser-XS < 0.18"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-11-06T16:40:33.779841Z"},"published":"2026-10-30","updated":"2026-11-06","sourceUpdated":"2026-11-06T16:41:08.545Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116130","references":[{"url":"https://github.com/kazuho/p5-http-parser-xs/commit/f388b9d7994722b01edd03d57de7d2fb819e1aae.patch"},{"url":"https://metacpan.org/release/KAZUHO/HTTP-Parser-XS-0.18/changes"}],"tags":["cve.org"],"epss":0.00586,"epssPercentile":0.48236,"ingestedAt":"2026-11-05T16:07:30.314Z","slug":"CVE-2026-116130","body":"## Overview\n\nHTTP::Parser::XS versions before 0.18 for Perl truncate PATH_INFO at an encoded NUL byte in parse_http_request.\n\nThe XS parser URL-decodes the request path and measures the result with strlen(), so PATH_INFO ends at the first byte decoded from %00. The pure-Perl backend is not affected.\n\nA remote attacker can send a path that a proxy or filter checks in full while the application routes on a shorter one.\n\n## Affected\n\n- `HTTP-Parser-XS < 0.18`\n\n## Remediation\n\nUpgrade to HTTP-Parser-XS 0.18 or later.","depth":"midnight","depthScore":50,"depthScoreParts":{"impact":50.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":235375,"id":"CVE-2026-116130","ts":1793984315986,"field":"cvss","old":null,"new":"9.1"},{"seq":235374,"id":"CVE-2026-116130","ts":1793984315986,"field":"severity","old":"none","new":"critical"}]}