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.
Published: 2026-07-16
Score: 6.2 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Github GHSA Github GHSA GHSA-m6xr-fvfg-5g64 Dasel: Denial of service in dasel selector lexer due to infinite loop on unterminated regex literal
History

Thu, 16 Jul 2026 20:15:00 +0000

Type Values Removed Values Added
First Time appeared Tomwright
Tomwright dasel
Vendors & Products Tomwright
Tomwright dasel

Thu, 16 Jul 2026 18:30:00 +0000

Type Values Removed Values Added
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.
Title Dasel: Denial of service in dasel selector lexer due to infinite loop on unterminated regex literal
Weaknesses CWE-835
References
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-07-16T17:57:33.923Z

Reserved: 2026-05-13T19:53:47.921Z

Link: CVE-2026-46378

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-16T20:00:05Z

Weaknesses
  • CWE-835

    Loop with Unreachable Exit Condition ('Infinite Loop')