{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-120632", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-11-02T17:39:55.528Z", "datePublished": "2026-11-03T23:40:01.071Z", "dateUpdated": "2026-11-03T23:40:01.071Z"}, "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::init"}], "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 CPU exhaustion via a backtracking regex on the XForms multipart/related Content-Type.\n\nWhen a POST Content-Type contains multipart/related, the boundary and start parameters are extracted with an unanchored pattern that puts .+ on either side of the boundary capture, which backtracks in cubic time on a header that does not match. No request body is needed."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-1333", "description": "CWE-1333 Inefficient Regular Expression Complexity", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-11-03T23:40:01.071Z"}, "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/1e529c7ac8d410a51b4b04ab9d6cc00d51ef33c0.patch"}], "solutions": [{"lang": "en", "value": "Upgrade to CGI 5.00 or later."}], "source": {"discovery": "UNKNOWN"}, "title": "CGI versions before 5.00 for Perl allow CPU exhaustion via a backtracking regex on the XForms multipart/related Content-Type", "workarounds": [{"lang": "en", "value": "For deployments that cannot upgrade, reject Content-Type request headers longer than 1KB at the web server."}], "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::init"}], "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 CPU exhaustion via a backtracking regex on the XForms multipart/related Content-Type.\n\nWhen a POST Content-Type contains multipart/related, the boundary and start parameters are extracted with an unanchored pattern that puts .+ on either side of the boundary capture, which backtracks in cubic time on a header that does not match. No request body is needed."}], "id": "CVE-2026-120632", "lastModified": "2026-11-04T18:42:35.810", "metrics": {}, "published": "2026-11-04T00:17:24.320", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/leejo/CGI.pm/commit/1e529c7ac8d410a51b4b04ab9d6cc00d51ef33c0.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-1333"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{"bugzilla": {"description": "perl-CGI: perl-CGI: Denial of Service via crafted multipart/related Content-Type header", "id": "2566593", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2566593"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-1333", "details": ["A flaw was found in the Perl CGI module. This vulnerability allows a remote attacker to cause a Denial of Service (DoS) by sending a specially crafted HTTP request. Due to an inefficient regular expression used when parsing multipart/related Content-Type headers, processing non-matching headers triggers catastrophic backtracking. This results in excessive CPU resource exhaustion and renders the application unresponsive, even without a request body."], "name": "CVE-2026-120632", "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": "2026-11-03T23:40:01Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-120632\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-120632\nhttps://github.com/leejo/CGI.pm/commit/1e529c7ac8d410a51b4b04ab9d6cc00d51ef33c0.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": "2026-11-04T08:30:12.770287+00:00", "updated": "2026-11-04T14:15:15.826533+00:00", "vendors": []}