{"api_version":"1","generated_at":"2026-11-05T03:53:22+00:00","cve":"CVE-2026-120631","urls":{"html":"https://cve.report/CVE-2026-120631","api":"https://cve.report/api/cve/CVE-2026-120631.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-120631","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-120631"},"summary":{"title":"CGI::Cookie versions from 4.67 before 5.00 for Perl allow denial of service via the client cookie expires value used as a regex in parse","description":"CGI::Cookie versions from 4.67 before 5.00 for Perl allow denial of service via the client cookie expires value used as a regex in parse.\n\nCGI's cookie method reads the Cookie request header through parse, which interpolates the header's expires value unescaped into the substitution pattern that removes it from the cookie string.\n\nA client can make the request die with an invalid pattern, or tie up the process with one that backtracks catastrophically.","state":"PUBLISHED","assigner":"CPANSec","published_at":"2026-11-04 00:17:24","updated_at":"2026-11-04 18:42:35"},"problem_types":["CWE-625","CWE-1333","CWE-1333 CWE-1333 Inefficient Regular Expression Complexity","CWE-625 CWE-625 Permissive Regular Expression"],"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://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI/Cookie.pm","name":"https://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI/Cookie.pm","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/leejo/CGI.pm/commit/95e044af2ec24d99a61e99d6291580ad47aff641.patch","name":"https://github.com/leejo/CGI.pm/commit/95e044af2ec24d99a61e99d6291580ad47aff641.patch","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-120631","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-120631","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":{"cve_year":"2026","cve_id":"120631","cve":"CVE-2026-120631","epss":"0.003890000","percentile":"0.331290000","score_date":"2026-11-04","updated_at":"2026-11-05 00:04:16"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","modules":["CGI::Cookie"],"packageName":"CGI","packageURL":"pkg:cpan/CGI","programFiles":["lib/CGI/Cookie.pm"],"programRoutines":[{"name":"CGI::Cookie::parse"},{"name":"CGI::cookie"}],"repo":"https://github.com/leejo/CGI.pm","versions":[{"lessThan":"5.00","status":"affected","version":"4.67","versionType":"custom"}]}],"descriptions":[{"lang":"en","value":"CGI::Cookie versions from 4.67 before 5.00 for Perl allow denial of service via the client cookie expires value used as a regex in parse.\n\nCGI's cookie method reads the Cookie request header through parse, which interpolates the header's expires value unescaped into the substitution pattern that removes it from the cookie string.\n\nA client can make the request die with an invalid pattern, or tie up the process with one that backtracks catastrophically."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1333","description":"CWE-1333 Inefficient Regular Expression Complexity","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-625","description":"CWE-625 Permissive Regular Expression","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-11-03T23:39:55.189Z","orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","shortName":"CPANSec"},"references":[{"tags":["technical-description"],"url":"https://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI/Cookie.pm"},{"tags":["release-notes"],"url":"https://metacpan.org/release/LEEJO/CGI-5.00/changes"},{"tags":["patch"],"url":"https://github.com/leejo/CGI.pm/commit/95e044af2ec24d99a61e99d6291580ad47aff641.patch"}],"solutions":[{"lang":"en","value":"Upgrade to CGI 5.00 or later."}],"source":{"discovery":"UNKNOWN"},"title":"CGI::Cookie versions from 4.67 before 5.00 for Perl allow denial of service via the client cookie expires value used as a regex in parse","x_generator":{"engine":"cpansec-cna-tool 0.1"}}},"cveMetadata":{"assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","assignerShortName":"CPANSec","cveId":"CVE-2026-120631","datePublished":"2026-11-03T23:39:55.189Z","dateReserved":"2026-11-02T17:36:13.881Z","dateUpdated":"2026-11-03T23:39:55.189Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-11-04 00:17:24","lastModifiedDate":"2026-11-04 18:42:35","problem_types":["CWE-625","CWE-1333","CWE-1333 CWE-1333 Inefficient Regular Expression Complexity","CWE-625 CWE-625 Permissive Regular Expression"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"120631","Ordinal":"1","Title":"CGI::Cookie versions from 4.67 before 5.00 for Perl allow denial","CVE":"CVE-2026-120631","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"120631","Ordinal":"1","NoteData":"CGI::Cookie versions from 4.67 before 5.00 for Perl allow denial of service via the client cookie expires value used as a regex in parse.\n\nCGI's cookie method reads the Cookie request header through parse, which interpolates the header's expires value unescaped into the substitution pattern that removes it from the cookie string.\n\nA client can make the request die with an invalid pattern, or tie up the process with one that backtracks catastrophically.","Type":"Description","Title":"CGI::Cookie versions from 4.67 before 5.00 for Perl allow denial"}]}}}