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Vulnerability · Published Oct 28, 2026 · Assigned by CPANSec

CVE-2026-117501HTTP::Body versions before 1.24_01 for Perl allow memory exhaustion via unbounded buffering of chunked request bodies

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 0.4% (higher than 33% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 67.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

HTTP::Body versions before 1.24_01 for Perl allow memory exhaustion via unbounded buffering of chunked request bodies. In chunked mode, used when no content length is given, add() holds each chunk in memory until all of it has arrived. A line that is not a chunk-size line, a size line without CRLF, or a size too large to fit an integer leaves the parser waiting forever, and every later add() grows the buffer. A remote attacker can exhaust memory in applications that pass chunked request bodies to HTTP::Body.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12libhttp-body-perlno fix listedDEBIAN-CVE-2026-117501
Debian:13libhttp-body-perlno fix listedDEBIAN-CVE-2026-117501
Debian:14libhttp-body-perl1.24.01-1DEBIAN-CVE-2026-117501
Ubuntu:22.04:LTSlibhttp-body-perlno fix listedUBUNTU-CVE-2026-117501
Ubuntu:24.04:LTSlibhttp-body-perlno fix listedUBUNTU-CVE-2026-117501
Ubuntu:26.04:LTSlibhttp-body-perlno fix listedUBUNTU-CVE-2026-117501
Ubuntu:26.10libhttp-body-perlno fix listedUBUNTU-CVE-2026-117501

Affected products (as reported)

VendorProductVersions
HTTP-Body 0 – before 1.24_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