{"id":"CVE-2026-115822","revision":null,"records":[{"revision":"d9c6ce26749f4f60a87a84f5ef1af929","observedAt":"2026-10-25T18:09:37.585+00:00","statement":{"source":"cve-program","id":"CVE-2026-115822","aliases":[],"title":"Starman versions before 0.4019 for Perl allow CPU exhaustion via quadratic regex backtracking when parsing chunked request bodies","description":"Starman versions before 0.4019 for Perl allow CPU exhaustion via quadratic regex backtracking when parsing chunked request bodies.\n\nStarman decodes chunked request bodies before calling the application, matching each chunk-size line with `s/^(([0-9a-fA-F]+).*\\015\\012)//`. A line of hex digits followed by a bare LF and then CRLF never matches, because `.` does not match LF, and each failed attempt backtracks in time quadratic in the length of the hex run. Nothing limits the length of the line.\n\nA remote attacker can exhaust worker CPU by sending such requests to any route.","state":0,"publishedAt":"2026-10-25T16:51:00.241+00:00","modifiedAt":"2026-10-25T16:51:00.241+00:00","affected":[{"ecosystem":"https://cpan.org/modules","name":"Starman","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"collectionURL\": \"https://cpan.org/modules\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"modules\": [\n                        \"Starman\"\n                    ],\n                    \"packageName\": \"Starman\",\n                    \"packageURL\": \"pkg:cpan/Starman\",\n                    \"programFiles\": [\n                        \"lib/Starman/Server.pm\"\n                    ],\n                    \"programRoutines\": [\n                        {\n                            \"name\": \"Starman::Server::_prepare_env\"\n                        }\n                    ],\n                    \"repo\": \"https://github.com/miyagawa/Starman\",\n                    \"versions\": [\n                        {\n                            \"lessThan\": \"0.4019\",\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"versionType\": \"custom\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://github.com/miyagawa/Starman/commit/0f33f9b132b5e410d6cce722ff71988e22476acf.patch","https://metacpan.org/release/MIYAGAWA/Starman-0.4019/changes"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115822","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-115822","identifiers":["CVE-2026-115822"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-43321610382942b8ad8c85917eab1546","complete":false,"records":4735,"lastAttemptAt":"2026-10-26T10:13:10.3623005+00:00","lastSuccessAt":"2026-10-24T23:18:49.862+00:00","error":"InvalidDataException","lastVerifiedAt":"2026-10-24T23:18:49.862+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":4764,"expectedIdentifiers":13474},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-10-26T10:13:07.6997575+00:00","complete":true,"records":1093,"lastAttemptAt":"2026-10-26T10:13:07.6997575+00:00","lastSuccessAt":"2026-10-26T10:13:07.8614935+00:00","error":null,"lastVerifiedAt":"2026-10-26T10:13:07.8614941+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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