CVE-2026-116285 | BDVDB-2026-397222 Detail

Description#

HTTP::Body versions before 1.23_01 for Perl allow CPU exhaustion via quadratic regex backtracking when parsing chunked request bodies. In chunked mode, used when no content length is given, add() matches each chunk-size line with `/^([\da-fA-F]+).*\x0D\x0A/`. On a line of hex digits whose first LF has no CR before it, the digits and `.*` backtrack against each other, so a single add() takes time quadratic in the line's length. Nothing limits how long the line can be. A remote attacker can exhaust CPU in applications that pass chunked request bodies to HTTP::Body.

Impact#

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Exploit#

History#

1. Version 12026-10-28Record published in the CVE List.
2. Version 22026-11-05Most recent update recorded in the CVE List.