{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-116135","assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","state":"PUBLISHED","assignerShortName":"CPANSec","dateReserved":"2026-10-25T11:14:04.979Z","datePublished":"2026-10-28T17:15:50.270Z","dateUpdated":"2026-10-28T17:15:50.270Z"},"containers":{"cna":{"affected":[{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","modules":["HTTP::Body"],"packageName":"HTTP-Body","packageURL":"pkg:cpan/HTTP-Body","programFiles":["lib/HTTP/Body/UrlEncoded.pm"],"programRoutines":[{"name":"HTTP::Body::UrlEncoded::spin"}],"repo":"https://github.com/libwww-perl/HTTP-Body","versions":[{"lessThan":"1.23_01","status":"affected","version":"0","versionType":"custom"}]}],"descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-178","description":"CWE-178 Improper Handling of Case Sensitivity","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","shortName":"CPANSec","dateUpdated":"2026-10-28T17:15:50.270Z"},"references":[{"tags":["patch"],"url":"https://github.com/libwww-perl/HTTP-Body/commit/336f1a23b4115a5cbeb546f36df5af62c90bdc0d.patch"},{"tags":["release-notes"],"url":"https://metacpan.org/release/GETTY/HTTP-Body-1.24/changes"},{"url":"https://www.rfc-editor.org/rfc/rfc3986#section-2.1"}],"solutions":[{"lang":"en","value":"Upgrade to HTTP-Body 1.23_01 or later."}],"source":{"discovery":"UNKNOWN"},"title":"HTTP::Body versions before 1.23_01 for Perl drop mixed-case percent escapes from urlencoded form fields instead of decoding them","x_generator":{"engine":"cpansec-cna-tool 0.1"}}}}