CVE-2026-46378
Dasel: Denial of service in dasel selector lexer due to infinite loop on unterminated regex literal
CVSS Score
6.2
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-835 |
| Vendor | tomwright |
| Product | dasel |
| Published | Jul 16, 2026 |
| Last Updated | Jul 16, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
TomWright / dasel
>= 3.0.0, < 3.10.1