CVE-2026-115824: high-severity vulnerability in Starman
Starman versions before 0.4019 for Perl allow memory exhaustion via unbounded buffering of chunked request bodies
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.6%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
StarmanRelated CVEs — Starman
In the same product, most dangerous first.
CVE-2026-115817HIGHStarman versions before 0.4019 for Perl allow a stalled request body to hold a worker indefinitely, as read_timeout covers only the headersEPSS 0.5%CVE-2026-115822HIGHStarman versions before 0.4019 for Perl allow CPU exhaustion via quadratic regex backtracking when parsing chunked request bodiesEPSS 0.5%CVE-2026-115823CRITICALStarman versions before 0.4019 for Perl send response bodies for HEAD requests, desynchronizing responses on keep-alive connectionsEPSS 0.4%