{"api_version":"1","generated_at":"2026-10-29T06:01:22+00:00","cve":"CVE-2026-116531","urls":{"html":"https://cve.report/CVE-2026-116531","api":"https://cve.report/api/cve/CVE-2026-116531.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-116531","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-116531"},"summary":{"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.","state":"PUBLISHED","assigner":"CPANSec","published_at":"2026-10-28 18:17:14","updated_at":"2026-10-28 18:17:14"},"problem_types":["CWE-130","CWE-130 CWE-130 Improper Handling of Length Parameter Inconsistency"],"metrics":[],"references":[{"url":"https://metacpan.org/release/GETTY/HTTP-Body-1.24/changes","name":"https://metacpan.org/release/GETTY/HTTP-Body-1.24/changes","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/libwww-perl/HTTP-Body/commit/5869dde9fe6d13f189a435b6583fd63fcc18677a.patch","name":"https://github.com/libwww-perl/HTTP-Body/commit/5869dde9fe6d13f189a435b6583fd63fcc18677a.patch","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-116531","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116531","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[{"source":"CNA","title":"","value":"Upgrade to HTTP-Body 1.23_01 or later.","time":"","lang":"en"}],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","modules":["HTTP::Body"],"packageName":"HTTP-Body","packageURL":"pkg:cpan/HTTP-Body","programFiles":["lib/HTTP/Body.pm"],"programRoutines":[{"name":"HTTP::Body::add"}],"repo":"https://github.com/libwww-perl/HTTP-Body","versions":[{"lessThan":"1.23_01","status":"affected","version":"0","versionType":"custom"}]}],"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."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-130","description":"CWE-130 Improper Handling of Length Parameter Inconsistency","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-28T17:16:42.065Z","orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","shortName":"CPANSec"},"references":[{"tags":["patch"],"url":"https://github.com/libwww-perl/HTTP-Body/commit/5869dde9fe6d13f189a435b6583fd63fcc18677a.patch"},{"tags":["release-notes"],"url":"https://metacpan.org/release/GETTY/HTTP-Body-1.24/changes"}],"solutions":[{"lang":"en","value":"Upgrade to HTTP-Body 1.23_01 or later."}],"source":{"discovery":"UNKNOWN"},"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","x_generator":{"engine":"cpansec-cna-tool 0.1"}}},"cveMetadata":{"assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","assignerShortName":"CPANSec","cveId":"CVE-2026-116531","datePublished":"2026-10-28T17:16:42.065Z","dateReserved":"2026-10-26T14:17:16.250Z","dateUpdated":"2026-10-28T17:16:42.065Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-28 18:17:14","lastModifiedDate":"2026-10-28 18:17:14","problem_types":["CWE-130","CWE-130 CWE-130 Improper Handling of Length Parameter Inconsistency"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"116531","Ordinal":"1","Title":"HTTP::Body versions before 1.23_01 for Perl lose track of chunk ","CVE":"CVE-2026-116531","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"116531","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"HTTP::Body versions before 1.23_01 for Perl lose track of chunk "}]}}}