CVE-2026-125729: Plack::Middleware::CSP versions before 0.03 for Perl send the Content Security Policy under the wrong header name, so browsers never enforce it
Vendor not named in the CVE record · Plack-Middleware-CSP
Fixed in 0.03 · Affected: Plack-Middleware-CSP before 0.03 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 14% of scored CVEs
Not scored yet. The CVE record carries no CVSS score.
DescriptionCVE.org
Plack::Middleware::CSP versions before 0.03 for Perl send the Content Security Policy under the wrong header name, so browsers never enforce it. The call method sets the policy in a response header named "content-security-protocol" instead of "Content-Security-Policy". Browsers ignore that header. Any cross-site scripting flaw in the wrapped application can run scripts the policy was meant to block.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Plack-Middleware-CSPbefore 0.03
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Published
- November 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-125729 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.