Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/TomWright/dasel/commit/eee03aec28d4a33d6138098d065b7b37b85e3c
- https://github.com/TomWright/dasel/releases/tag/v3.11.2
- https://github.com/TomWright/dasel/security/advisories/GHSA-65gg-g7rw-6cpc
- https://github.com/TomWright/dasel/security/advisories/GHSA-65gg-g7rw-6cpc
FAQ
What is CVE-2026-62866?
CVE-2026-62866 is a vulnerability with a CVSS score of 6.2 (MEDIUM). 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 tra...
How severe is CVE-2026-62866?
CVE-2026-62866 has been rated MEDIUM with a CVSS base score of 6.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-62866?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.