{"api_version":"1","generated_at":"2026-11-04T05:17:08+00:00","cve":"CVE-2026-120651","urls":{"html":"https://cve.report/CVE-2026-120651","api":"https://cve.report/api/cve/CVE-2026-120651.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-120651","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-120651"},"summary":{"title":"CGI versions before 5.00 for Perl allow an infinite loop on a short request body when $DISABLE_UPLOADS is set","description":"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.","state":"PUBLISHED","assigner":"CPANSec","published_at":"2026-11-04 00:17:26","updated_at":"2026-11-04 00:17:26"},"problem_types":["CWE-835","CWE-835 CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')"],"metrics":[],"references":[{"url":"https://metacpan.org/release/LEEJO/CGI-5.00/changes","name":"https://metacpan.org/release/LEEJO/CGI-5.00/changes","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/leejo/CGI.pm/commit/8a78305065690461ae283fa24e5ebe4ec8a22fbc.patch","name":"https://github.com/leejo/CGI.pm/commit/8a78305065690461ae283fa24e5ebe4ec8a22fbc.patch","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/leejo/CGI.pm/commit/16d9f61acf8b844b7360e8d726338e3ce34dfa9f.patch","name":"https://github.com/leejo/CGI.pm/commit/16d9f61acf8b844b7360e8d726338e3ce34dfa9f.patch","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI.pm","name":"https://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI.pm","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-120651","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-120651","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[{"source":"CNA","title":"","value":"Upgrade to CGI 5.00 or later.","time":"","lang":"en"}],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"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":{"dateUpdated":"2026-11-03T23:41:17.179Z","orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","shortName":"CPANSec"},"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"}}},"cveMetadata":{"assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","assignerShortName":"CPANSec","cveId":"CVE-2026-120651","datePublished":"2026-11-03T23:41:17.179Z","dateReserved":"2026-11-02T17:59:11.920Z","dateUpdated":"2026-11-03T23:41:17.179Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-11-04 00:17:26","lastModifiedDate":"2026-11-04 00:17:26","problem_types":["CWE-835","CWE-835 CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"120651","Ordinal":"1","Title":"CGI versions before 5.00 for Perl allow an infinite loop on a sh","CVE":"CVE-2026-120651","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"120651","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"CGI versions before 5.00 for Perl allow an infinite loop on a sh"}]}}}