Live › vulnerability › CVE-2026-115824
Go to dashboardStarman, a Perl PSGI web server, buffers each chunk of a chunked HTTP request body in memory with no size limit, and accepts chunk-size lines of unlimited length. A single remote client can keep sending data and grow the server's memory until the worker runs out, causing denial of service.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-25 17:42 UTC. All times on this page are UTC.
Any service that runs Starman directly as its public HTTP server, or behind a proxy that forwards chunked request bodies unchanged, is exposed. Deployments behind a proxy that buffers and limits request bodies, or that never accept chunked uploads, are less exposed. The sources do not give more detail on the exact configuration needed.
No product ranges from the sources yet.
perl -MStarman -e 'print $Starman::VERSION' or cpanm --info Starman to read the installed versioncpanfile.snapshot for the Starman version0.4019 or laterEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
Starman versions before 0.4019 for Perl allow memory exhaustion via unbounded buffering of chunked request bodies.
The chunked body decoder keeps each chunk in memory until the whole chunk and its CRLF have arrived, and sets no limit on the length of a chunk-size line. A client that declares a huge chunk size and streams data, or sends a chunk-size line that never ends, grows the buffer for as long as it keeps sending.
A remote attacker can exhaust worker memory with a single connection.
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