UBUNTU-CVE-2026-116134: Medium severity ubuntu/libhttp-body-perl vulnerability
HTTP::Body versions before 1.2301 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 Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
HTTP::Bodyto a version that resolves this vulnerability.Fixed in 1.23_01
Event History
Frequently Asked Questions
Which deployments are exposed?
Deployments are exposed if they use HTTP::Body before version 1.23_01 to parse multipart requests. A remote attacker can target a request path that reaches the affected multipart parser.
What does an exploit request need to contain?
The request must include a multipart part whose header block contains an unbounded number or size of header lines before the first blank line after a boundary. The parser stores every line in the part header hash, creating substantial memory amplification.
How can I determine whether a system is affected?
Check the installed HTTP::Body version. Versions earlier than 1.23_01 are affected.