Starman versions before 0.4019 for Perl allow memory exhaustion via unbounded buffering of chunked request bodies

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

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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.

Source published

25 Oct 2026 16:51:39 UTC

Source modified

25 Oct 2026 16:51:39 UTC

Observed here

25 Oct 2026 18:09:37 UTC

Source terms

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