cvedb.io
CVE-2026-40560
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-04-29T00:16:03.927 · Last modified 2026-06-17T10:45:26.970

Summary

Starman versions before 0.4018 for Perl allows HTTP Request Smuggling via Improper Header Precedence. Starman incorrectly prioritizes "Content-Length" over "Transfer-Encoding: chunked" when both headers are present in an HTTP request. Per RFC 7230 3.3.3, Transfer-Encoding must take precedence. An attacker could exploit this to smuggle malicious HTTP requests via a front-end reverse proxy.

Affected products

miyagawa — starman

Does this affect you?

Add your gear to cvedb and we'll alert you only when miyagawa ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.