CVE-2026-115823: Starman (Perl module) · HTTP Request/Response Smuggling
Affects Starman (Perl module)Source CVE Database V5
Not known to be exploited : upgrade to 0.4019 when convenient.
Data as of 25 Oct 2026, 17:13 UTC
Rated Medium by the CNA (CPANSec) · CVSS not yet scored by NVD
- Patch
- Available – fixed in 0.4019
Exploitation evidence
Disclosed: evidence found.
CVE published 25 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
Upgrade Starman (Perl module) to 0.4019.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
CPANStarmanpkg:cpan/StarmanOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
If you cannot patch yet, avoid using vulnerable versions of Starman in environments where keep-alive or pipelined HTTP connections are proxied or reused.
Description
Starman versions before 0.4019 for Perl improperly handle HTTP HEAD requests by sending response bodies, causing desynchronization of responses on keep-alive connections. This leads to clients potentially reading response bytes as part of subsequent responses, which can cause front-end proxies to mismatch responses with requests.