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
| CVE | CVE-2026-116531 |
|---|---|
| State | PUBLISHED |
| Assigner | CPANSec |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-28 18:17:14 UTC |
| Updated | 2026-10-28 18:17:14 UTC |
| 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. 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. |
Risk And Classification
Problem Types: CWE-130 | CWE-130 CWE-130 Improper Handling of Length Parameter Inconsistency
There are no known software configurations currently associated with this CVE in NVD or the CVE Program record.
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| metacpan.org/release/GETTY/HTTP-Body-1.24/changes | 9b29abf9-4ab0-4765-b253-1875cd9b441e | metacpan.org | |
| github.com/libwww-perl/HTTP-Body/commit/5869dde9fe6d13f189a435b6583fd63f... | 9b29abf9-4ab0-4765-b253-1875cd9b441e | github.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
Solutions
CNA: Upgrade to HTTP-Body 1.23_01 or later.
There are currently no legacy QID mappings associated with this CVE.