{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-120638", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-11-02T17:40:51.554Z", "datePublished": "2026-11-03T23:40:27.142Z", "dateUpdated": "2026-11-03T23:40:27.142Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "modules": ["CGI"], "packageName": "CGI", "packageURL": "pkg:cpan/CGI", "programFiles": ["lib/CGI.pm"], "programRoutines": [{"name": "CGI::redirect"}], "repo": "https://github.com/leejo/CGI.pm", "versions": [{"lessThan": "5.00", "status": "affected", "version": "0", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "CGI versions before 5.00 for Perl allow open redirects via HTML entity decoding of the URL after application validation in redirect.\n\nredirect decodes HTML entities in its URL before writing the Location header, so a URL the application has already validated can change meaning. For example, //evil.example/ becomes //evil.example/ and sends the user to another host."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-180", "description": "CWE-180 Incorrect Behavior Order: Validate Before Canonicalize", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-601", "description": "CWE-601 URL Redirection to Untrusted Site ('Open Redirect')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-11-03T23:40:27.142Z"}, "references": [{"tags": ["technical-description"], "url": "https://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI.pm"}, {"tags": ["release-notes"], "url": "https://metacpan.org/release/LEEJO/CGI-5.00/changes"}, {"tags": ["patch"], "url": "https://github.com/leejo/CGI.pm/commit/7733c2753f4f240012097507cda2b6e87ae46db4.patch"}], "solutions": [{"lang": "en", "value": "Upgrade to CGI 5.00 or later."}], "source": {"discovery": "UNKNOWN"}, "title": "CGI versions before 5.00 for Perl allow open redirects via HTML entity decoding of the URL after application validation in redirect", "workarounds": [{"lang": "en", "value": "For deployments that cannot upgrade, reject redirect URLs that HTML entity decoding would change."}], "x_generator": {"engine": "cpansec-cna-tool 0.1"}}}}

{}

{"affected": [{"affectedData": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "modules": ["CGI"], "packageName": "CGI", "packageURL": "pkg:cpan/CGI", "programFiles": ["lib/CGI.pm"], "programRoutines": [{"name": "CGI::redirect"}], "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 allow open redirects via HTML entity decoding of the URL after application validation in redirect.\n\nredirect decodes HTML entities in its URL before writing the Location header, so a URL the application has already validated can change meaning. For example, //evil.example/ becomes //evil.example/ and sends the user to another host."}], "id": "CVE-2026-120638", "lastModified": "2026-11-04T00:17:25.137", "metrics": {}, "published": "2026-11-04T00:17:25.137", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/leejo/CGI.pm/commit/7733c2753f4f240012097507cda2b6e87ae46db4.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": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-180"}, {"lang": "en", "value": "CWE-601"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{"bugzilla": {"description": "perl-cgi: perl-cgi: Open redirect via HTML entity decoding in redirect function", "id": "2566609", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2566609"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-601", "details": ["A flaw was found in perl-cgi. The redirect function decodes HTML entities in target URLs before generating the HTTP Location header. A remote attacker could exploit this vulnerability by supplying a specially crafted URL containing encoded characters that bypasses application-level URL validation. Successful exploitation may result in an open redirect, tricking users into visiting untrusted or malicious external websites."], "name": "CVE-2026-120638", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "perl-CGI", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "perl-CGI", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "perl-CGI", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "perl-CGI", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-11-03T23:40:27Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-120638\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-120638\nhttps://github.com/leejo/CGI.pm/commit/7733c2753f4f240012097507cda2b6e87ae46db4.patch\nhttps://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI.pm\nhttps://metacpan.org/release/LEEJO/CGI-5.00/changes"], "threat_severity": "Moderate"}

{"created": "2026-11-04T08:30:12.769739+00:00", "updated": "2026-11-04T08:30:12.769745+00:00", "vendors": []}