{"id":"CVE-2026-116531","state":"PUBLISHED","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","description":"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 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.","publishedAt":"2026-10-28T17:16:42.065Z","updatedAt":"2026-10-28T17:16:42.065Z","severity":null,"assigner":"CPANSec","products":["HTTP-Body"],"affected":[{"packageName":"HTTP-Body","packageURL":"pkg:cpan/HTTP-Body","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.23_01","versionType":"custom"}],"collectionURL":"https://cpan.org/modules","modules":["HTTP::Body"],"programFiles":["lib/HTTP/Body.pm"],"programRoutines":[{"name":"HTTP::Body::add"}],"repo":"https://github.com/libwww-perl/HTTP-Body"}],"references":["https://github.com/libwww-perl/HTTP-Body/commit/5869dde9fe6d13f189a435b6583fd63fcc18677a.patch","https://metacpan.org/release/GETTY/HTTP-Body-1.24/changes"],"weaknesses":["CWE-130"],"ingestedAt":"2026-10-29T20:10:43.281Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/116xxx/CVE-2026-116531.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-116531","state":"PUBLISHED","datePublished":"2026-10-28T17:16:42.065Z","dateUpdated":"2026-10-28T17:16:42.065Z","assignerShortName":"CPANSec","assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","dateReserved":"2026-10-26T14:17:16.250Z"},"containers":{"cna":{"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","descriptions":[{"lang":"en","value":"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 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."}],"affected":[{"packageName":"HTTP-Body","packageURL":"pkg:cpan/HTTP-Body","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.23_01","versionType":"custom"}],"collectionURL":"https://cpan.org/modules","modules":["HTTP::Body"],"programFiles":["lib/HTTP/Body.pm"],"programRoutines":[{"name":"HTTP::Body::add"}],"repo":"https://github.com/libwww-perl/HTTP-Body"}],"references":[{"url":"https://github.com/libwww-perl/HTTP-Body/commit/5869dde9fe6d13f189a435b6583fd63fcc18677a.patch","tags":["patch"]},{"url":"https://metacpan.org/release/GETTY/HTTP-Body-1.24/changes","tags":["release-notes"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-130","description":"CWE-130 Improper Handling of Length Parameter Inconsistency","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"CPANSec","orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","dateUpdated":"2026-10-28T17:16:42.065Z"},"solutions":[{"lang":"en","value":"Upgrade to HTTP-Body 1.23_01 or later."}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"cpansec-cna-tool 0.1"}}}}}