{"api_version":"1","generated_at":"2026-11-12T02:19:26+00:00","cve":"CVE-2026-117500","urls":{"html":"https://cve.report/CVE-2026-117500","api":"https://cve.report/api/cve/CVE-2026-117500.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-117500","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-117500"},"summary":{"title":"HTTP::Body versions before 1.24_01 for Perl allow CPU exhaustion via regex backtracking on the filename of a multipart upload","description":"HTTP::Body versions before 1.24_01 for Perl allow CPU exhaustion via regex backtracking on the filename of a multipart upload.\n\nFor every file part, the multipart parser finds the suffix of the uploaded filename by matching the default $basename_regexp, qr/[^.]+(\\.[^\\\\\\/]+)$/, against the whole basename. A basename made of many dots and ending in a backslash makes the regex backtrack in time quadratic in its length.\n\nA remote attacker can exhaust CPU with one request, as a basename of about 32 KB takes several seconds to match and every file part is matched separately.","state":"PUBLISHED","assigner":"CPANSec","published_at":"2026-10-28 18:17:14","updated_at":"2026-11-05 21:18:40"},"problem_types":["CWE-1333","CWE-1333 CWE-1333 Inefficient Regular Expression Complexity"],"metrics":[{"version":"3.1","source":"ADP","type":"DECLARED","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}},{"version":"3.1","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://github.com/libwww-perl/HTTP-Body/commit/9ab46daaede02fb13ea55a7e3ede34c8b918d8ca.patch","name":"https://github.com/libwww-perl/HTTP-Body/commit/9ab46daaede02fb13ea55a7e3ede34c8b918d8ca.patch","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://metacpan.org/release/GETTY/HTTP-Body-1.24_01/changes","name":"https://metacpan.org/release/GETTY/HTTP-Body-1.24_01/changes","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/libwww-perl/HTTP-Body/commit/3abc958d78bd84bf4abb87bad79b9432eab7e694.patch","name":"https://github.com/libwww-perl/HTTP-Body/commit/3abc958d78bd84bf4abb87bad79b9432eab7e694.patch","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-117500","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-117500","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[{"source":"CNA","title":"","value":"Upgrade to HTTP-Body 1.24_01 or later.","time":"","lang":"en"}],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"117500","cve":"CVE-2026-117500","epss":"0.002640000","percentile":"0.184420000","score_date":"2026-11-05","updated_at":"2026-11-06 00:07:24"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}},{"other":{"content":{"id":"CVE-2026-117500","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-11-05T21:03:38.050786Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-11-05T21:03:43.961Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","modules":["HTTP::Body"],"packageName":"HTTP-Body","packageURL":"pkg:cpan/HTTP-Body","programFiles":["lib/HTTP/Body/MultiPart.pm"],"programRoutines":[{"name":"HTTP::Body::MultiPart::handler"}],"repo":"https://github.com/libwww-perl/HTTP-Body","versions":[{"lessThan":"1.24_01","status":"affected","version":"0","versionType":"custom"}]}],"descriptions":[{"lang":"en","value":"HTTP::Body versions before 1.24_01 for Perl allow CPU exhaustion via regex backtracking on the filename of a multipart upload.\n\nFor every file part, the multipart parser finds the suffix of the uploaded filename by matching the default $basename_regexp, qr/[^.]+(\\.[^\\\\\\/]+)$/, against the whole basename. A basename made of many dots and ending in a backslash makes the regex backtrack in time quadratic in its length.\n\nA remote attacker can exhaust CPU with one request, as a basename of about 32 KB takes several seconds to match and every file part is matched separately."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1333","description":"CWE-1333 Inefficient Regular Expression Complexity","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-28T17:17:11.051Z","orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","shortName":"CPANSec"},"references":[{"tags":["patch"],"url":"https://github.com/libwww-perl/HTTP-Body/commit/9ab46daaede02fb13ea55a7e3ede34c8b918d8ca.patch"},{"tags":["patch"],"url":"https://github.com/libwww-perl/HTTP-Body/commit/3abc958d78bd84bf4abb87bad79b9432eab7e694.patch"},{"tags":["release-notes"],"url":"https://metacpan.org/release/GETTY/HTTP-Body-1.24_01/changes"}],"solutions":[{"lang":"en","value":"Upgrade to HTTP-Body 1.24_01 or later."}],"source":{"discovery":"UNKNOWN"},"title":"HTTP::Body versions before 1.24_01 for Perl allow CPU exhaustion via regex backtracking on the filename of a multipart upload","x_generator":{"engine":"cpansec-cna-tool 0.1"}}},"cveMetadata":{"assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","assignerShortName":"CPANSec","cveId":"CVE-2026-117500","datePublished":"2026-10-28T17:17:11.051Z","dateReserved":"2026-10-27T08:44:49.796Z","dateUpdated":"2026-11-05T21:03:43.961Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-28 18:17:14","lastModifiedDate":"2026-11-05 21:18:40","problem_types":["CWE-1333","CWE-1333 CWE-1333 Inefficient Regular Expression Complexity"],"metrics":{"cvssMetricV31":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-11-05T21:03:38.050786Z","id":"CVE-2026-117500","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"117500","Ordinal":"1","Title":"HTTP::Body versions before 1.24_01 for Perl allow CPU exhaustion","CVE":"CVE-2026-117500","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"117500","Ordinal":"1","NoteData":"HTTP::Body versions before 1.24_01 for Perl allow CPU exhaustion via regex backtracking on the filename of a multipart upload.\n\nFor every file part, the multipart parser finds the suffix of the uploaded filename by matching the default $basename_regexp, qr/[^.]+(\\.[^\\\\\\/]+)$/, against the whole basename. A basename made of many dots and ending in a backslash makes the regex backtrack in time quadratic in its length.\n\nA remote attacker can exhaust CPU with one request, as a basename of about 32 KB takes several seconds to match and every file part is matched separately.","Type":"Description","Title":"HTTP::Body versions before 1.24_01 for Perl allow CPU exhaustion"}]}}}