Is there a public exploit for CVE-2026-120645?

No public exploit for CVE-2026-120645 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

— Unscored

CGI versions before 5.00 for Perl allow denial of service via submitted values used as a regex for optgroup selection in scrollinglist.

CVE-2026-120645

CGI versions before 5.00 for Perl allow denial of service via submitted values used as a regex for optgroup selection in scrollinglist. When rendering option groups, scrollinglist marks the selected options by interpolating each selected value, by default taken from the request parameters, unescaped into a substitution pattern. A client can make the request die with an invalid pattern, or tie up the process with one that backtracks heavily.

Assessment

CVSS: Not yet scored
Severity: Unscored
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 3 November 2026
Last updated: 3 November 2026
Assigner: CPANSec

At the source

EUVD (ENISA)

References

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