{"id":"UBUNTU-CVE-2026-62866","details":"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 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.","modified":"2026-09-24T02:00:35.011556661Z","published":"2026-09-21T17:17:00Z","upstream":["CVE-2026-62866"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-62866"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-62866"},{"type":"REPORT","url":"https://github.com/TomWright/dasel/commit/eee03aec28d4a33d6138098d065b7b37b85e3c55"},{"type":"REPORT","url":"https://github.com/TomWright/dasel/releases/tag/v3.11.2"},{"type":"REPORT","url":"https://github.com/TomWright/dasel/security/advisories/GHSA-65gg-g7rw-6cpc"}],"affected":[{"package":{"name":"dasel","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/dasel?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.6.0-1","2.6.0-1build1","2.6.0-1ubuntu0.1","2.6.0-1ubuntu0.2","2.6.0-1ubuntu0.2+esm1","2.6.0-1ubuntu0.3","2.6.0-1ubuntu0.3+esm1","2.6.0-1ubuntu0.3+esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"2.6.0-1ubuntu0.3+esm2","binary_name":"dasel"},{"binary_name":"golang-github-tomwright-dasel-dev","binary_version":"2.6.0-1ubuntu0.3+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-62866.json"}},{"package":{"name":"dasel","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/dasel?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.8.1-1","2.8.1-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"dasel","binary_version":"2.8.1-1build1"},{"binary_version":"2.8.1-1build1","binary_name":"golang-github-tomwright-dasel-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-62866.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}