medium6.2
CVE-2026-62866
Dasel is a command-line tool and library for querying, modifying, and transforming data structures.
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/tomwright/dasel/v3 | >= 3.0.0, < 3.11.2 | 3.11.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-65gg-g7rw-6cpc
- https://github.com/TomWright/dasel/security/advisories/GHSA-65gg-g7rw-6cpc
- https://nvd.nist.gov/vuln/detail/CVE-2026-62866
- https://github.com/TomWright/dasel/commit/eee03aec28d4a33d6138098d065b7b37b85e3c55
- https://github.com/TomWright/dasel/releases/tag/v3.11.2