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CVE-2026-120642

CGI versions before 5.00 for Perl return request-derived values untainted under taint mode

No score

CGI versions before 5.00 for Perl return request-derived values untainted under taint mode.

The upload filename, uploadInfo values, some path_info and script_name values, Accept results, and the name lists from url_param and cookie are returned without the taint flag, as is a cookie named expires from 4.67 on.

These values come from regex captures or hash keys, which Perl does not taint, so they pass -T checks unvalidated.

Exploit likelihood

0.19%Unchanged since Nov 4, 2026
90%50%10%1%

What each source reports

CVE List No score

CGI versions before 5.00 for Perl return request-derived values untainted under taint mode

CGI versions before 5.00 for Perl return request-derived values untainted under taint mode.

The upload filename, uploadInfo values, some path_info and script_name values, Accept results, and the name lists from url_param and cookie are returned without the taint flag, as is a cookie named expires from 4.67 on.

These values come from regex captures or hash keys, which Perl does not taint, so they pass -T checks unvalidated.

Record
CVE-2026-120642
Weakness
CWE-1173
Updated
2026-11-04
EUVDEUVD-2026-116609 No score

CGI versions before 5.00 for Perl return request-derived values untainted under taint mode.

The upload filename, uploadInfo values, some path_info and script_name values, Accept results, and the name lists from url_param and cookie are returned without the taint flag, as is a cookie named expires from 4.67 on.

These values come from regex captures or hash keys, which Perl does not taint, so they pass -T checks unvalidated.

Record
EUVD-2026-116609
Updated
2026-11-04
GitHub AdvisoriesGHSA-mqfc-h2mx-w8gc No score

CGI versions before 5.00 for Perl return request-derived values untainted under taint mode. The...

CGI versions before 5.00 for Perl return request-derived values untainted under taint mode.

The upload filename, uploadInfo values, some path_info and script_name values, Accept results, and the name lists from url_param and cookie are returned without the taint flag, as is a cookie named expires from 4.67 on.

These values come from regex captures or hash keys, which Perl does not taint, so they pass -T checks unvalidated.

Record
GHSA-mqfc-h2mx-w8gc
Weakness
CWE-1173
Updated
2026-11-04
NVD No score

CGI versions before 5.00 for Perl return request-derived values untainted under taint mode.

The upload filename, uploadInfo values, some path_info and script_name values, Accept results, and the name lists from url_param and cookie are returned without the taint flag, as is a cookie named expires from 4.67 on.

These values come from regex captures or hash keys, which Perl does not taint, so they pass -T checks unvalidated.

Record
CVE-2026-120642
Weakness
CWE-1173
Updated
2026-11-04
OSVAZL-112771 No score

CVE-2026-120642 affecting package perl-CGI 4.60-1

CGI versions before 5.00 for Perl return request-derived values untainted under taint mode.

The upload filename, uploadInfo values, some path_info and script_name values, Accept results, and the name lists from url_param and cookie are returned without the taint flag, as is a cookie named expires from 4.67 on.

These values come from regex captures or hash keys, which Perl does not taint, so they pass -T checks unvalidated.

Record
AZL-112771
Updated
2026-11-07
OSV No score

CGI versions before 5.00 for Perl return request-derived values untainted under taint mode

CGI versions before 5.00 for Perl return request-derived values untainted under taint mode.

The upload filename, uploadInfo values, some path_info and script_name values, Accept results, and the name lists from url_param and cookie are returned without the taint flag, as is a cookie named expires from 4.67 on.

These values come from regex captures or hash keys, which Perl does not taint, so they pass -T checks unvalidated.

Record
CVE-2026-120642
Weakness
CWE-1173
Updated
2026-11-07
OSVDEBIAN-CVE-2026-120642 No score

CGI versions before 5.00 for Perl return request-derived values untainted under taint mode. The upload filename, uploadInfo values, some path_info and script_name values, Accept results, and the name lists from url_param and cookie are returned without the taint flag, as is a cookie named expires from 4.67 on. These values come from regex captures or hash keys, which Perl does not taint, so they pass -T checks unvalidated.

Record
DEBIAN-CVE-2026-120642
Updated
2026-11-05
OSVopenSUSE-SU-2026:12465-1 No score

perl-CGI-5.20.0-1.1 on GA media

These are all security issues fixed in the perl-CGI-5.20.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:12465-1
Updated
2026-11-07
OSVUBUNTU-CVE-2026-120642 No score

CGI versions before 5.00 for Perl return request-derived values untainted under taint mode. The upload filename, uploadInfo values, some path_info and script_name values, Accept results, and the name lists from url_param and cookie are returned without the taint flag, as is a cookie named expires from 4.67 on. These values come from regex captures or hash keys, which Perl does not taint, so they pass -T checks unvalidated.

Record
UBUNTU-CVE-2026-120642
Updated
2026-11-05

Affected packages

Affected packages
PackageAffectedFixed
perl-CGI
Azure Linux:3
through 4.60-1 None known
libcgi-pm-perl
Debian:12
All versions, plus listed versions
4.55-14.57-14.59-14.60-14.61-1
Show 11 moreShow less
4.62-14.63-14.64-14.65-14.66-14.67-14.68-14.70-14.71-14.72-15.02-1
None known
libcgi-pm-perl
Debian:13
All versions, plus listed versions
4.68-14.70-14.71-14.72-15.02-1
None known
libcgi-pm-perl
Debian:14
All versions, plus listed versions
4.68-14.70-14.71-14.72-15.02-1
None known
libcgi-pm-perl
Ubuntu:16.04:LTS
All versions, plus listed versions
4.21-14.22-14.25-14.26-1
None known
libcgi-pm-perl
Ubuntu:18.04:LTS
All versions, plus listed versions
4.36-14.37-14.38-1
None known
libcgi-pm-perl
Ubuntu:20.04:LTS
All versions, plus listed versions
4.44-14.45-14.46-1
None known
libcgi-pm-perl
Ubuntu:22.04:LTS
All versions, plus listed versions
4.51-14.53-14.54-1
None known
libcgi-pm-perl
Ubuntu:24.04:LTS
All versions, plus listed versions
4.57-14.60-14.61-14.62-14.63-1
None known
libcgi-pm-perl
Ubuntu:26.10
All versions, plus listed versions
4.71-1build14.72-1
None known
libcgi-pm-perl
Ubuntu:26.04:LTS
All versions, plus listed versions
4.68-14.71-14.71-1build1
None known
perl-CGI
openSUSE:Tumbleweed
From an advisory covering 20 CVEs
before 5.20.0-1.1
5.20.0-1.1

History

History
RecordedChangedSources
affected, aliases, referencesOSV
affected, aliases, referencesOSV
affected, aliases, referencesNVD, OSV
referencesOSV
affected, aliases, referencesOSV
aliasesEUVD, NVD
first indexedCVE List, GitHub Advisories

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-120642 is a vulnerability with no CVSS score yet in perl-CGI, published November 3, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.19%, the 8th percentile. No source names a fixed version.

References

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