UNKNOWN NVD
CVE-2026-121006
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:
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.
References
- https://github.com/libwww-perl/HTTP-Body/commit/983dd4ca3b863ab513240b02c91c3114fb299389.p
- https://metacpan.org/release/GETTY/HTTP-Body-1.24_02/changes
- http://www.openwall.com/lists/oss-security/2026/11/06/8
- https://www.openwall.com/lists/oss-security/2026/11/06/8
This unknown severity vulnerability was published on 2026-11-06 via NVD.
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