CVE-2026-125729: Plack::Middleware::CSP versions before 0.03 for Perl send the Content Security Policy under the
Source GCVE Database
Not known to be exploited : upgrade to 0.03 soon.
Data as of 10 Nov 2026, 19:32 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in 0.03
Exploitation evidence
Disclosed: evidence found.
CVE published 10 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 10 Nov 2026.
What to do
Upgrade Plack-Middleware-CSP (Perl module) to 0.03.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Plack-Middleware-CSP | Affected
| Fixed in
|
CPANPlack-Middleware-CSPpkg:cpan/Plack-Middleware-CSPOther 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
Upgrade to Plack::Middleware::CSP version 0.03 or later where the header name is correctly set to "Content-Security-Policy". No other mitigation is indicated by the available data.
Description
Plack::Middleware::CSP versions before 0.03 for Perl incorrectly send the Content Security Policy using the header name "content-security-protocol" instead of the correct "Content-Security-Policy" header. As a result, browsers do not enforce the intended security policy, potentially allowing cross-site scripting (XSS) attacks to execute scripts that the policy was meant to block.