{"id":"CVE-2026-116135","aliases":["DEBIAN-CVE-2026-116135","EUVD-2026-112273","GHSA-xw3w-872r-g8q5","UBUNTU-CVE-2026-116135","openSUSE-SU-2026:12346-1"],"status":"published","title":"HTTP::Body versions before 1.23_01 for Perl drop mixed-case percent escapes from urlencoded form fields instead of decoding them","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.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.00598,"percentile":0.4912,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-178"],"published":"2026-10-28T17:15:50Z","modified":"2026-11-05T21:34:42Z","fixes":[{"ecosystem":"Debian:14","package":"libhttp-body-perl","fixed_in":["1.24.01-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"libhttp-body-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.22-2","1.23-1","1.24.01-1"]},{"source":"osv","ecosystem":"Debian:13","package":"libhttp-body-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.23-1","1.24.01-1"]},{"source":"osv","ecosystem":"Debian:14","package":"libhttp-body-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.24.01-1"}]}],"versions":["1.23-1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"libhttp-body-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.22-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"libhttp-body-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.22-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"libhttp-body-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.22-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"libhttp-body-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.22-1.1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"libhttp-body-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.22-2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"libhttp-body-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.23-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"libhttp-body-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.23-1"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"perl-HTTP-Body","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.240.0-1.1"}]}],"bundled":7}],"references":[{"url":"https://github.com/libwww-perl/HTTP-Body/commit/336f1a23b4115a5cbeb546f36df5af62c90bdc0d.patch","tags":["patch","fix","report"]},{"url":"https://metacpan.org/release/GETTY/HTTP-Body-1.24/changes","tags":["release-notes","advisory","report"]},{"url":"https://www.rfc-editor.org/rfc/rfc3986#section-2.1","tags":["web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116135","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-xw3w-872r-g8q5"},{"url":"https://cpan.org/modules","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/116xxx/CVE-2026-116135.json","tags":["advisory"]},{"url":"https://github.com/libwww-perl/HTTP-Body","tags":["package"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-116135","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-116135","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-116135","tags":["report"]},{"url":"https://lists.security.metacpan.org/cve-announce/msg/44711937/","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-116131","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-116132","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-116133","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-116134","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-116135","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-116285","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-116531","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-116135","title":"HTTP::Body versions before 1.23_01 for Perl drop mixed-case percent escapes from urlencoded form fields instead of decoding them","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.","status":"published","published":"2026-10-28T17:15:50.27Z","modified":"2026-11-05T20:57:22.885Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-178"],"updated_at":"2026-11-05T21:25:05.838392Z"}],"euvd":[{"id":"EUVD-2026-112273","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.","status":"published","published":"2026-10-28T17:15:50Z","modified":"2026-11-05T20:57:22Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-05T22:02:09.75306Z"}],"ghsa":[{"id":"GHSA-xw3w-872r-g8q5","title":"HTTP::Body versions before 1.23_01 for Perl drop mixed-case percent escapes from urlencoded form...","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.","status":"published","published":"2026-10-28T18:32:12Z","modified":"2026-11-05T21:34:42Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-178"],"updated_at":"2026-11-05T21:56:36.974002Z"}],"nvd":[{"id":"CVE-2026-116135","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.","status":"published","published":"2026-10-28T18:17:12.683Z","modified":"2026-11-05T21:18:37.503Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-178"],"updated_at":"2026-11-05T23:57:22.237283Z"}],"osv":[{"id":"CVE-2026-116135","title":"HTTP::Body versions before 1.23_01 for Perl drop mixed-case percent escapes from urlencoded form fields instead of decoding them","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.","status":"published","published":"2026-10-28T17:15:50.27Z","modified":"2026-11-07T02:30:44.801466825Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-178"],"updated_at":"2026-11-07T03:08:01.156605Z"},{"id":"DEBIAN-CVE-2026-116135","description":"HTTP::Body versions before 1.23_01 for Perl drop mixed-case percent escapes from urlencoded form fields instead of decoding them.  The 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.  A 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.","status":"published","published":"2026-10-28T18:17:12.683Z","modified":"2026-11-06T10:04:34.131726674Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-06T10:38:22.758306Z"},{"id":"UBUNTU-CVE-2026-116135","description":"HTTP::Body versions before 1.23_01 for Perl drop mixed-case percent escapes from urlencoded form fields instead of decoding them. The 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. A 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.","status":"published","published":"2026-10-28T18:17:00Z","modified":"2026-11-07T01:45:03.867437419Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-07T01:57:16.198641Z"},{"id":"openSUSE-SU-2026:12346-1","title":"perl-HTTP-Body-1.240.0-1.1 on GA media","description":"These are all security issues fixed in the perl-HTTP-Body-1.240.0-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-10-29T00:00:00Z","modified":"2026-10-31T18:00:06.836285455Z","updated_at":"2026-11-02T16:58:40.245664Z"}]}}