All vulnerabilities
CVE-2026-116134

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

Unknown product
CVSS
NoneNot scored
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed in1.23_01Fixed versionCVE List
Published28 Oct 2026Updated 28 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 1

  • Productaffected: all versions before 1.23_01CVE List

References 2