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CVE-2026-116133unknown

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

Impact

HTTP::Body versions before 1.23_01 for Perl are vulnerable to CPU exhaustion via quadratic rescanning of a multipart body with a missing or malformed boundary, allowing a remote attacker to exhaust worker CPU. The weakness is due to an inefficient algorithmic complexity.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

What to do

Upgrade to HTTP-Body 1.23_01 or later.

CPANSec guidance

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

Vendor not supplied · CPANSec

HTTP-Body

1 range
CPANSec version evidence

Package identity

pkg:cpan/HTTP-Body

Identity supplied by CPANSec. Version matching requires compatible range evidence.

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before 1.23_01

custom versions

unaffected

unknown

Other versions: unaffected

Original source description

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.

Inside the record

Evidence available

Package identity
Version evidence
Remediation guidance
Weakness classification
Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-116133

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-407 ↗

CWE-407 Inefficient Algorithmic Complexity

CPANSec

Related →
Contributing organizations · 1
CPANSec

Assigning organization

2026-10-28

What changed

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References

2 sources
github.com/libwww-perl/HTTP-Body/commit/bf77eb959bbe1641b77f69eefe98d58ce4c4ec79.patch
patchCPANSec
metacpan.org/release/GETTY/HTTP-Body-1.24/changes
release-notesCPANSec