{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-120651", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-11-02T17:59:11.920Z", "datePublished": "2026-11-03T23:41:17.179Z", "dateUpdated": "2026-11-03T23:41:17.179Z"}, "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::read_postdata_putdata"}], "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 an infinite loop on a short request body when $DISABLE_UPLOADS is set.\n\nWhen $CGI::PUTDATA_UPLOAD or an upload hook is set, read_postdata_putdata takes a request body that is not a form submission. With $CGI::DISABLE_UPLOADS set, it discards the body by reading until Content-Length bytes have arrived. Once a body shorter than its Content-Length runs out, every read returns 0, so the loop never ends.\n\nA client can keep a server process spinning with one such request."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-835", "description": "CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-11-03T23:41:17.179Z"}, "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/16d9f61acf8b844b7360e8d726338e3ce34dfa9f.patch"}, {"tags": ["patch"], "url": "https://github.com/leejo/CGI.pm/commit/8a78305065690461ae283fa24e5ebe4ec8a22fbc.patch"}], "solutions": [{"lang": "en", "value": "Upgrade to CGI 5.00 or later."}], "source": {"discovery": "UNKNOWN"}, "title": "CGI versions before 5.00 for Perl allow an infinite loop on a short request body when $DISABLE_UPLOADS is set", "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::read_postdata_putdata"}], "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 an infinite loop on a short request body when $DISABLE_UPLOADS is set.\n\nWhen $CGI::PUTDATA_UPLOAD or an upload hook is set, read_postdata_putdata takes a request body that is not a form submission. With $CGI::DISABLE_UPLOADS set, it discards the body by reading until Content-Length bytes have arrived. Once a body shorter than its Content-Length runs out, every read returns 0, so the loop never ends.\n\nA client can keep a server process spinning with one such request."}], "id": "CVE-2026-120651", "lastModified": "2026-11-04T18:42:35.810", "metrics": {}, "published": "2026-11-04T00:17:26.633", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/leejo/CGI.pm/commit/16d9f61acf8b844b7360e8d726338e3ce34dfa9f.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/leejo/CGI.pm/commit/8a78305065690461ae283fa24e5ebe4ec8a22fbc.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-835"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{"bugzilla": {"description": "perl-cgi: perl-cgi: Denial of Service via truncated request body", "id": "2566599", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2566599"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-835", "details": ["A flaw was found in perl-cgi. A remote attacker can trigger a denial of service (DoS) by sending an HTTP request containing a body shorter than its declared Content-Length header. When file upload processing is disabled, the server enters an infinite loop attempting to discard remaining data, consuming excessive CPU resources and rendering the affected server process unresponsive."], "name": "CVE-2026-120651", "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": "2026-11-03T23:41:17Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-120651\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-120651\nhttps://github.com/leejo/CGI.pm/commit/16d9f61acf8b844b7360e8d726338e3ce34dfa9f.patch\nhttps://github.com/leejo/CGI.pm/commit/8a78305065690461ae283fa24e5ebe4ec8a22fbc.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": "2026-11-04T08:15:10.521406+00:00", "updated": "2026-11-04T14:15:15.823627+00:00", "vendors": []}