CVE-2026-125729

Unknown

Last modified

CVE-2026-125729 is a vulnerability of currently unknown severity. 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..

Description

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.

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
——< 0.03

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is 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. 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.
How severe is CVE-2026-125729?
Severity scoring for CVE-2026-125729 is pending analysis.
How do I fix CVE-2026-125729?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST