Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/TomWright/dasel/commit/95f8dd3af12958bf6ca2a737b3ec0267280f86
- https://github.com/TomWright/dasel/security/advisories/GHSA-m6xr-fvfg-5g64
- https://github.com/TomWright/dasel/security/advisories/GHSA-m6xr-fvfg-5g64
FAQ
What is CVE-2026-46378?
CVE-2026-46378 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 3.10.1, the selector lexer matchRegexPattern closure in (*Tokenizer).parseCurRune i...
How severe is CVE-2026-46378?
CVE-2026-46378 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-2026-46378?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.