CVE-2026-120634: CGI (Perl module) · Exposure of Data Element to Wrong Session
Affects CGI (Perl module)Source CVE Database V5
Not known to be exploited : upgrade to 5.00 soon.
Data as of 4 Nov 2026, 01:13 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in 5.00
Exploitation evidence
Disclosed: evidence found.
CVE published 3 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.
What to do
Upgrade CGI (Perl module) to 5.00.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| CGI | Affected
| Fixed in
|
CPANCGIpkg:cpan/CGIOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade to CGI::Carp version 5.00 or later, where the issue has been fixed by clearing the warnings buffer between requests. No other mitigation is indicated.
Description
CGI::Carp versions prior to 5.00 for Perl contain a vulnerability where warnings generated in one user's request can leak into the HTML response of another user's request in persistent environments such as mod_perl, FastCGI, or PSGI. This occurs because a package-level buffer holding warnings is not cleared between requests, causing exposure of data elements across sessions.