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CVE-2026-121006 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/libwww-perl/HTTP-Body/commit/983dd4ca3b863ab513240b02c91c3114fb299389.patch	CPANSec
https://metacpan.org/release/GETTY/HTTP-Body-1.24_02/changes	CPANSec
http://www.openwall.com/lists/oss-security/2026/11/06/8	CVE

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-770	Allocation of Resources Without Limits or Throttling	CPANSec

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Nov 6, 2026	CVE Modified	CVE
Nov 6, 2026	New CVE Received	CPANSec