{"id":"CVE-2026-116531","title":"HTTP::Body versions before 1.23_01 for Perl lose track of chunk boundaries in chunked request bodies when a read ends inside a chunk","summary":"HTTP::Body versions before 1.23_01 for Perl lose track of chunk boundaries in chunked request bodies when a read ends inside a chunk.\n\nIn chunked mode, used when no content length is given, add() treats a chunk as complete once the buffe…","severity":"none","cwe":["CWE-130"],"product":"HTTP-Body","affected":["HTTP-Body < 1.23_01"],"published":"2026-10-28","updated":"2026-10-28","sourceUpdated":"2026-10-28T17:16:42.065Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116531","references":[{"url":"https://github.com/libwww-perl/HTTP-Body/commit/5869dde9fe6d13f189a435b6583fd63fcc18677a.patch"},{"url":"https://metacpan.org/release/GETTY/HTTP-Body-1.24/changes"}],"tags":["cve.org"],"ingestedAt":"2026-10-28T18:15:46.401Z","slug":"CVE-2026-116531","body":"## Overview\n\nHTTP::Body versions before 1.23_01 for Perl lose track of chunk boundaries in chunked request bodies when a read ends inside a chunk.\n\nIn chunked mode, used when no content length is given, add() treats a chunk as complete once the buffer is as long as the chunk's declared size, but the buffer still holds the chunk-size line. When a read ends in the last bytes of a chunk, add() takes the chunk short and parses the leftover data as the next chunk-size line.\n\nA remote attacker can make a chunked body never complete, hanging a server that reads until the body is done, and may make it complete early, leaving the remaining bytes to be read as the next request.\n\n## Affected\n\n- `HTTP-Body < 1.23_01`\n\n## Remediation\n\nUpgrade to HTTP-Body 1.23_01 or later.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}