CVE-2026-46377CWE-129

Dasel: Index-out-of-range panic in dasel selector lexer on trailing backslash in quoted string

Medium · published July 16, 2026

CVSS v3.1
6.2
EPSS
0%
Percentile
7.5
In the wild
Unconfirmed
What it is

Dasel is a command-line tool and library for querying, modifying, and transforming data structures. From 3.0.0 until 3.10.1, the escape sequence handler in (*Tokenizer).parseCurRune in selector/lexer/tokenize.go increments past a trailing backslash in a quoted string such as "\ or '\ and then reads p.src[pos] without a bounds check, allowing attacker-controlled selector strings to trigger a Go index-out-of-range panic. This issue is fixed in version 3.10.1.

The record
Technical detail
CVSS v3.1
6.2 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00184 · 7.5th percentile
Weakness
CWE-129 · Improper Validation of Array Index
Published
2026-07-16T17:57Z
EPSS history
Timeline
  • 16 JUL 17:57Z
    Dasel: Index-out-of-range panic in dasel selector lexer on trailing backslash in quoted string
    cvelistv5