CVE-2026-120642

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{"affected": [{"affectedData": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "modules": ["CGI"], "packageName": "CGI", "packageURL": "pkg:cpan/CGI", "programFiles": ["lib/CGI.pm", "lib/CGI/Cookie.pm"], "programRoutines": [{"name": "CGI::upload"}, {"name": "CGI::uploadInfo"}, {"name": "CGI::path_info"}, {"name": "CGI::script_name"}, {"name": "CGI::Accept"}, {"name": "CGI::url_param"}, {"name": "CGI::cookie"}, {"name": "CGI::Cookie::parse"}], "repo": "https://github.com/leejo/CGI.pm", "versions": [{"lessThan": "5.00", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "CGI versions before 5.00 for Perl return request-derived values untainted under taint mode.\n\nThe 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.\n\nThese values come from regex captures or hash keys, which Perl does not taint, so they pass -T checks unvalidated."}], "id": "CVE-2026-120642", "lastModified": "2026-11-09T20:18:06.207", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-120642", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-11-09T19:17:41.758486Z", "version": "2.0.3"}}]}, "published": "2026-11-04T00:17:25.650", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/leejo/CGI.pm/commit/6ae50ce84073b8f68a6e3750479de70d5b8f2dcf.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI.pm"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/LEEJO/CGI-5.00/changes"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1173"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{"bugzilla": {"description": "perl-cgi: perl-cgi: Security feature bypass via untainted request parameters", "id": "2566605", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2566605"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-501", "details": ["A flaw was found in perl-cgi. When running under Perl's taint mode\u2014a security feature that prevents untrusted data from being used in sensitive operations\u2014the module returns several request-derived values without taint flags. A remote attacker could exploit this vulnerability by submitting crafted request parameters to bypass taint checks, potentially allowing unvalidated data to reach sensitive operations in applications that rely on taint verification."], "name": "CVE-2026-120642", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "perl-CGI", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "perl-CGI", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "perl-CGI", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "perl-CGI", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-11-03T23:40:44Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-120642\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-120642\nhttps://github.com/leejo/CGI.pm/commit/6ae50ce84073b8f68a6e3750479de70d5b8f2dcf.patch\nhttps://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI.pm\nhttps://metacpan.org/release/LEEJO/CGI-5.00/changes"], "threat_severity": "Important"}

{"created": "2026-11-04T08:15:10.522564+00:00", "updated": "2026-11-09T23:15:03.933406+00:00", "vendors": []}