HTTP::Body up to 1.23_00 urlencoded parser/multipart parser resource consumption

Summaryinfo

A vulnerability categorized as problematic has been discovered in HTTP::Body up to 1.23_00. This affects an unknown part of the component urlencoded parser/multipart parser. The manipulation results in resource consumption. This vulnerability is known as CVE-2026-116131. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in HTTP::Body up to 1.23_00. It has been classified as problematic. Affected is an unknown functionality of the component urlencoded parser/multipart parser. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. CVE summarizes:

HTTP::Body versions before 1.23_01 for Perl allow memory and temporary file exhaustion via an unlimited number of form fields and multipart parts. The urlencoded parser splits the whole body on its separators at once, creating one scalar per separator before any field is stored. This costs about 90 bytes of memory per separator byte. The multipart parser creates a temporary file for every part that carries a filename. Neither parser limits how many fields or parts a body may hold. A remote attacker can exhaust worker memory with a body made of separators, or create thousands of temporary files with one request of small file parts.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-116131 since 10/25/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

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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