CVE-2026-15743

Summary

Catalyst::Plugin::Static::Simple versions through 0.38 for Perl mark responses as publicly cacheable.

The _serve_static method always sets the Cache-Control header to "public", with no means of overriding it. This advises proxies that the content may be stored in a shared cache, and may be reused in responses to requests from other users. (This includes requests with an Authorization header.)

Configuring the expires time to "0" to disable caching, as documented, is ignored.

Affected Software

Weaknesses

• CWE-524: CWE-524 Use of Cache Containing Sensitive Information

Workarounds

Apply the patch, and configure the default Cache-Control as needed.

For deployments that cannot apply the patch, a method modifier of _serve_static in the Catalyst class can be used to override the Cache-Control or Expires headers as needed.

ADP Enrichment

CVE Program Container

Additional References

• http://www.openwall.com/lists/oss-security/2026/08/20/18

References

• https://github.com/perl-catalyst/Catalyst-Plugin-Static-Simple/pull/3
• https://security.metacpan.org/patches/C/Catalyst-Plugin-Static-Simple/0.38/CVE-2026-15743-r1.patch
• https://datatracker.ietf.org/doc/html/rfc9111

• ←Previous
• Next→