Upstream information

CVE-2026-121006 at MITRE

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.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having moderate severity.

SUSE Bugzilla entry: 1289589 [NEW]

No SUSE Security Announcements cross referenced.

SUSE Timeline for this CVE

CVE page created: Fri Nov 6 12:00:00 2026
CVE page last modified: Fri Nov 6 14:02:30 2026