CVE-2026-115823 — Vulnerability intelligence
—
Published:
- CVSS
- 9.1
- CISA KEV
- Not listed; not proof of no exploitation
Original source text (not a translation)
Starman versions before 0.4019 for Perl send response bodies for HEAD requests, desynchronizing responses on keep-alive connections.
For a HEAD request Starman omits chunked framing but still writes the body returned by the application, on both the array and streaming response paths. Responses with a 1xx, 204 or 304 status also carry the body.
On a keep-alive or pipelined connection the client reads those bytes as the start of the next response. A front-end proxy that reuses upstream connections may then pair responses with the wrong requests.