{"id":"CVE-2026-116135","aliases":[],"cve":{"records":[{"id":"CVE-2026-116135","source":"CPANSec","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-25T11:14:04.979Z","published":"2026-10-28T17:15:50.270Z","modified":"2026-11-05T20:57:22.885Z"}],"publishers":[{"name":"CPANSec","role":"CNA","organizationId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","modified":"2026-10-28T17:15:50.270Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-11-05T20:57:22.885Z"}],"references":[{"url":"https://github.com/libwww-perl/HTTP-Body/commit/336f1a23b4115a5cbeb546f36df5af62c90bdc0d.patch","tags":["patch"],"source":"CPANSec"},{"url":"https://metacpan.org/release/GETTY/HTTP-Body-1.24/changes","tags":["release-notes"],"source":"CPANSec"},{"url":"https://www.rfc-editor.org/rfc/rfc3986#section-2.1","tags":[],"source":"CPANSec"}],"weaknesses":[{"id":"CWE-178","description":"CWE-178 Improper Handling of Case Sensitivity","source":"CPANSec"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-11-05T20:57:12.358183Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"total"}]}]},"title":"HTTP::Body versions before 1.23_01 for Perl drop mixed-case percent escapes from urlencoded form fields instead of decoding them","titleSource":"CPANSec","descriptionSource":"CPANSec","description":"HTTP::Body versions before 1.23_01 for Perl drop mixed-case percent escapes from urlencoded form fields instead of decoding them.\n\nThe decode table holds only the all-lowercase and all-uppercase spelling of each hex pair, while the escape pattern matches either case. An escape such as %aB finds no entry and is replaced with nothing, joining the bytes on either side. Hex digits in percent escapes are case-insensitive, and conforming decoders return the byte.\n\nA remote attacker can send a field name or value that a conforming decoder in front of the application reads differently, so that pass%aBword reaches the application as password.","score":9.8,"severity":"critical","published":"2026-10-28T17:15:50.270Z","modified":"2026-11-05T20:57:22.885Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"","name":"HTTP-Body","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"1.23_01","versionType":"custom"}],"defaultStatus":"unaffected","packageURL":"pkg:cpan/HTTP-Body","cpes":[],"source":"CPANSec","url":"https://www.cve.org/CVERecord?id=CVE-2026-116135"}],"remediation":[{"text":"Upgrade to HTTP-Body 1.23_01 or later.","source":"CPANSec","url":"https://www.cve.org/CVERecord?id=CVE-2026-116135"}],"references":["https://github.com/libwww-perl/HTTP-Body/commit/336f1a23b4115a5cbeb546f36df5af62c90bdc0d.patch","https://metacpan.org/release/GETTY/HTTP-Body-1.24/changes","https://www.rfc-editor.org/rfc/rfc3986#section-2.1"],"sources":[{"name":"CVE","id":"CVE-2026-116135","modified":"2026-11-05T20:57:22.885Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-116135"}],"assessments":[{"source":"CISA-ADP","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8}],"sourceAffected":[],"observedAt":"2026-11-05T23:39:17.034Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T03:20:35.359Z"},"coverage":[{"source":"NVD","status":"no-result","checkedAt":"2026-10-28T17:40:30.691Z","attemptedAt":"2026-10-28T17:40:30.691Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-10-28T17:40:31.204Z","attemptedAt":"2026-10-28T17:40:31.204Z"},{"source":"EUVD","status":"refresh-failed","attemptedAt":"2026-10-28T17:40:31.207Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-10-28T17:40:30.934Z","attemptedAt":"2026-10-28T17:40:30.934Z"}],"evidence":[],"aiSummary":{"text":"HTTP::Body versions before 1.23_01 for Perl drop mixed-case percent escapes from urlencoded form fields. A remote attacker can send a field that a conforming decoder reads differently. This is due to improper handling of case sensitivity.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:09:16.579Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-116135"}]}}