{"id":"CVE-2026-46378","aliases":["GHSA-m6xr-fvfg-5g64","GO-2026-5493"],"url":"https://o3.security/vulnerability/CVE-2026-46378","summary":"Dasel: Denial of service in dasel selector lexer due to infinite loop on unterminated regex literal","details":"Dasel is a command-line tool and library for querying, modifying, and transforming data structures. From 3.0.0 until 3.10.1, the selector lexer matchRegexPattern closure in (*Tokenizer).parseCurRune in selector/lexer/tokenize.go loops while tokenizing an unterminated regex literal such as r/ because peekRuneEqual returns false after the end of input, allowing attacker-controlled selector strings to consume CPU indefinitely. This issue is fixed in version 3.10.1.","published":"2026-07-16T17:54:51.705Z","modified":"2026-08-12T03:51:17.037512333Z","cvss":{"score":6.2,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.00112,"percentile":0.01606,"asOf":"2026-08-16"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/tomwright/dasel/v3","fixedVersion":"3.10.1"}],"fix":{"url":"https://github.com/TomWright/dasel/commit/95f8dd3af12958bf6ca2a737b3ec0267280f86ed","label":"TomWright/dasel@95f8dd3"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46378.json"},{"type":"ADVISORY","url":"https://github.com/TomWright/dasel/security/advisories/GHSA-m6xr-fvfg-5g64"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46378"},{"type":"FIX","url":"https://github.com/TomWright/dasel/commit/95f8dd3af12958bf6ca2a737b3ec0267280f86ed"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:17.037512333Z"}}