CVE-2026-115823 Starman versions before 0.4019 for Perl send response bodies for HEAD requests, desynchronizing responses on keep-alive connections
CriticalCVSS 9.1
EPSS 0.35%
- Published
- Updated
- Exploit status
- No public exploit known
Description
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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cpan Starman | < 0.4019 | 0.4019 |
| debian/starman(Debian:12) | All versions | No fix listed |
| debian/starman(Debian:12) | = 0.4016-1 | No fix listed |
| debian/starman(Debian:12) | = 0.4017-1 | No fix listed |
| debian/starman(Debian:12) | = 0.4018-1 | No fix listed |
| debian/starman(Debian:12) | = 0.4019-1 | No fix listed |
| debian/starman(Debian:13) | All versions | No fix listed |
| debian/starman(Debian:13) | = 0.4017-1 | No fix listed |
| debian/starman(Debian:13) | = 0.4018-0+deb13u1 | No fix listed |
| debian/starman(Debian:13) | = 0.4018-1 | No fix listed |
| debian/starman(Debian:13) | = 0.4019-1 | No fix listed |
| debian/starman(Debian:14) | < 0.4019-1 | 0.4019-1 |
| debian/starman(Debian:14) | = 0.4017-1 | No fix listed |
| debian/starman(Debian:14) | = 0.4018-1 | No fix listed |
| ubuntu/starman(Ubuntu:22.04) | All versions | No fix listed |
| ubuntu/starman(Ubuntu:24.04) | All versions | No fix listed |
| ubuntu/starman(Ubuntu:26.04) | All versions | No fix listed |
| ubuntu/starman(Ubuntu:26.10) | All versions | No fix listed |
References
- Red Hat CVE page mitigation vendor-advisory
- Red Hat Bugzilla 2560478 issue-tracking
- www.cve.org
- nvd.nist.gov
- github.com patch
- metacpan.org release-notes
- Debian Security Tracker CVE-2026-115823 vendor-advisory
- Ubuntu CVE tracker vendor-advisory
- bugs.debian.org issue-tracking