Bug#1151241: libplack-perl: CVE-2026-110333 CVE-2026-110332 CVE-2026-110335 CVE-2026-110334 CVE-2026-110336

[Salvatore Bonaccorso]

Source: libplack-perl
Version: 1.0054-1
X-Debbugs-CC: team at security.debian.org
Severity: important
Tags: security upstream

Hi,

The following vulnerabilities were published for libplack-perl.

The new 1.0055 releases fixes:

| SECURITY
| 
|     Fix memory leak of every request env in Plack::Middleware::Recursive (CVE-2026-110333)
|     Plack::Request::Upload->basename never returns '', '.' or '..' (CVE-2026-110332)
|     Plack::App::URLMap matches SERVER_PORT literally when stripping it from Host (CVE-2026-110335)
| 
| BUG FIXES
| 
|     Plack::Middleware::ErrorDocument restores the env after a subrequest, so outer middleware such as AccessLog sees the original request (CVE-2026-110334)
| 
| DOCUMENTATION
| 
|     Document that Plack::Handler::FCGI and Apache2 keep dot segments in PATH_INFO and warn against relying on front-server path-based access control (CVE-2026-110336)

If you fix the vulnerabilities please also make sure to include the
CVE (Common Vulnerabilities & Exposures) ids in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-110333
    https://www.cve.org/CVERecord?id=CVE-2026-110333
[1] https://security-tracker.debian.org/tracker/CVE-2026-110332
    https://www.cve.org/CVERecord?id=CVE-2026-110332
[2] https://security-tracker.debian.org/tracker/CVE-2026-110335
    https://www.cve.org/CVERecord?id=CVE-2026-110335
[3] https://security-tracker.debian.org/tracker/CVE-2026-110334
    https://www.cve.org/CVERecord?id=CVE-2026-110334
[4] https://security-tracker.debian.org/tracker/CVE-2026-110336
    https://www.cve.org/CVERecord?id=CVE-2026-110336

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore