HTTP::Body up to 1.23_00 Multipart Parser resource consumption

Summaryinfo

A vulnerability labeled as problematic has been found in HTTP::Body up to 1.23_00. This issue affects some unknown processing of the component Multipart Parser. Such manipulation leads to resource consumption. This vulnerability is uniquely identified as CVE-2026-116133. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in HTTP::Body up to 1.23_00. It has been rated as problematic. Affected by this issue is an unknown part of the component Multipart Parser. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. CVE summarizes:

HTTP::Body versions before 1.23_01 for Perl allow CPU exhaustion via quadratic rescanning of a multipart body with a missing or malformed boundary. Before the first part, and between parts, the multipart parser searches the whole buffered body for the next boundary. On a miss it keeps everything and searches again from the start when the next chunk arrives. A body with no boundary, or with a delimiter followed by neither CRLF nor "--", is therefore rescanned on every chunk, taking time quadratic in its size. A remote attacker can exhaust worker CPU with a few such requests.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-116133 since 10/25/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 1.23_01 eliminates this vulnerability.

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Productinfo

Name

• HTTP::Body

Version

• 1

CPE 2.3info

• 🔒

CPE 2.2info

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