CVE-2026-46378
Medium
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.
SeverityMedium
CVSS6.2
Exploit probability—
ProductGithub.com/tomwright/dasel/v3
PublishedJul 16, 2026
First seenJul 16, 2026
Weakness typeCWE-835CWE-835
How to fix
Update
- github.com/tomwright/dasel/v33.10.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| github.com/tomwright/dasel/v3Go | 3.0.0 ≤ v < 3.10.1 | 3.10.1 |
| github.com/tomwright/daselGo | No range specified | — |
| github.com/tomwright/dasel/v2Go | No range specified | — |
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