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Vulnerability · Published Oct 28, 2026 · Assigned by CPANSec

CVE-2026-116134HTTP::Body versions before 1.23_01 for Perl allow memory exhaustion via an unbounded multipart part header block

High 7.5

In plain English

A high-severity resource allocation without limits in HTTP-Body. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 58.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

HTTP::Body versions before 1.23_01 for Perl allow memory exhaustion via an unbounded multipart part header block. The multipart parser takes everything up to the first blank line after a boundary as the part's header block, with no limit on its size or number of lines. Every line is stored in the part's header hash, so a block of short lines costs about 60 bytes of memory per input byte. A remote attacker can exhaust worker memory with a single request.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12libhttp-body-perlno fix listedDEBIAN-CVE-2026-116134
Debian:13libhttp-body-perlno fix listedDEBIAN-CVE-2026-116134
Debian:14libhttp-body-perl1.24.01-1DEBIAN-CVE-2026-116134
Ubuntu:22.04:LTSlibhttp-body-perlno fix listedUBUNTU-CVE-2026-116134
Ubuntu:24.04:LTSlibhttp-body-perlno fix listedUBUNTU-CVE-2026-116134
Ubuntu:26.04:LTSlibhttp-body-perlno fix listedUBUNTU-CVE-2026-116134
Ubuntu:26.10libhttp-body-perlno fix listedUBUNTU-CVE-2026-116134

Affected products (as reported)

VendorProductVersions
HTTP-Body 0 – before 1.23_01

Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References