HTTP::Body versions before 1.24_02 for Perl parse the trailer in quadratic time
Summary
| CVE | CVE-2026-121006 |
|---|---|
| State | PUBLISHED |
| Assigner | CPANSec |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-11-06 08:17:19 UTC |
| Updated | 2026-11-06 19:17:43 UTC |
| Description | HTTP::Body versions before 1.24_02 for Perl parse the trailer in quadratic time. Everything after the last chunk in the same call to add() is parsed with HTTP::Headers, which takes time quadratic in the number of fields of one name. For example, it takes several seconds to parse 16 KiB of "a:" lines. A remote attackercan exhause the CPU with a single request. HTTP::Body version 1.25 limits the size and number of lines in the trailer. |
Risk And Classification
EPSS: 0.002250000 probability, percentile 0.131950000 (date 2026-11-07)
Problem Types: CWE-770 | CWE-770 CWE-770 Allocation of Resources Without Limits or Throttling
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_02/changes | 9b29abf9-4ab0-4765-b253-1875cd9b441e | metacpan.org | |
| www.openwall.com/lists/oss-security/2026/11/06/8 | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | |
| github.com/libwww-perl/HTTP-Body/commit/983dd4ca3b863ab513240b02c91c3114... | 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 version 1.24_02 or later.
There are currently no legacy QID mappings associated with this CVE.