CVE-2026-120643

NameCVE-2026-120643
DescriptionCGI versions from 4.62 before 5.00 for Perl allow cross-site scripting via a raw apostrophe in URLs returned by url and self_url. Both pass the URL through URI's canonical method, which leaves an apostrophe in the path raw and decodes the %27 that query parameter escaping produces, so an apostrophe in the request path or a parameter appears raw in the result. An application that places the URL in a single-quoted HTML attribute or JavaScript string is open to cross-site scripting.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libcgi-pm-perl (PTS)bookworm4.55-1vulnerable
trixie4.68-1vulnerable
forky4.72-1vulnerable
sid5.02-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libcgi-pm-perlsource(unstable)5.02-1

Notes

https://lists.security.metacpan.org/cve-announce/msg/44874955/
https://github.com/leejo/CGI.pm/commit/851430be84c4d0f350681814e1d7718b9959f2c2 (v5.01)

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