{"id":"CVE-2026-62866","title":"Dasel is a command-line tool and library for querying, modifying, and transforming data structures","summary":"Dasel is a command-line tool and library for querying, modifying, and transforming data structures. From 3.0.0 until 3.11.2, selector/lexer/tokenize.go parseCurRune advances the input index across trailing whitespace and then reads the s…","severity":"medium","cvss":6.2,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-129"],"vendor":"TomWright","product":"dasel","affected":["dasel >= 3.0.0, < 3.11.2"],"patched":["github.com/tomwright/dasel/v3 3.11.2"],"published":"2026-09-21","updated":"2026-09-24","sourceUpdated":"2026-09-24T21:25:27.050","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-62866","references":[{"url":"https://github.com/TomWright/dasel/commit/eee03aec28d4a33d6138098d065b7b37b85e3c55","label":"security-advisories@github.com"},{"url":"https://github.com/TomWright/dasel/releases/tag/v3.11.2","label":"security-advisories@github.com"},{"url":"https://github.com/TomWright/dasel/security/advisories/GHSA-65gg-g7rw-6cpc","label":"security-advisories@github.com"},{"url":"https://github.com/TomWright/dasel/security/advisories/GHSA-65gg-g7rw-6cpc","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-62866"},{"url":"https://github.com/advisories/GHSA-65gg-g7rw-6cpc"},{"url":"https://github.com/TomWright/dasel"}],"tags":["nvd","cve.org","exploit-available","ghsa","go","osv"],"epss":0.00192,"epssPercentile":0.08828,"aliases":["GHSA-65gg-g7rw-6cpc","GO-2026-6548"],"ecosystem":"go","exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-21T17:59:52.863215Z"},"ingestedAt":"2026-09-21T17:49:53.174Z","slug":"CVE-2026-62866","body":"## Overview\n\nDasel is a command-line tool and library for querying, modifying, and transforming data structures. From 3.0.0 until 3.11.2, selector/lexer/tokenize.go parseCurRune advances the input index across trailing whitespace and then reads the source at the exhausted index without an end-of-input check. A selector ending in whitespace, including input passed through lexer.NewTokenizer(...).Tokenize() or dasel.Query, can therefore cause an index-out-of-range panic and terminate the process. This issue is fixed in version 3.11.2.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-62866)\n\nAffected packages:\n\n- `github.com/tomwright/dasel/v3 >= 3.0.0, < 3.11.2`\n\nPatched in:\n\n- `github.com/tomwright/dasel/v3 3.11.2`\n\nSource: https://github.com/advisories/GHSA-65gg-g7rw-6cpc","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":34.1,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":208711,"id":"CVE-2026-62866","ts":1790016703489,"field":"exploit_available","old":"false","new":"true"}]}