CVE-2026-116531
Dashboard / Vulnerabilities / CVE-2026-116531
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
Details: 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. In 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. A 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.
References: https://cpan.org/modules, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/116xxx/CVE-2026-116531.json, https://metacpan.org/release/GETTY/HTTP-Body-1.24/changes, https://nvd.nist.gov/vuln/detail/CVE-2026-116531, https://github.com/libwww-perl/HTTP-Body/commit/5869dde9fe6d13f189a435b6583fd63fcc18677a.patch, https://github.com/libwww-perl/HTTP-Body
Affected packages
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