CVE-2026-44466

Zed: Allowlist Bypass via Bash Arithmetic Expansion in Terminal Tool Permissions

Published May 28, 2026 CVSS 3.1 · 8.6 High EPSS < 1% KEV · Not listed
Description
Zed is a code editor. Prior to 0.229.0, Zed's terminal tool permission system can be bypassed via bash arithmetic expansion $((...)), allowing execution of arbitrary commands nested inside an allowlisted command like echo. This vulnerability is fixed in 0.229.0.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Zed
Zed zed
CPEs cpe:2.3:a:zed:zed:*:*:*:*:*:*:*:*
Vendors & Products Zed
Zed zed
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Zed-industries
Zed-industries zed
Vendors & Products Zed-industries
Zed-industries zed
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Zed is a code editor. Prior to 0.229.0, Zed's terminal tool permission system can be bypassed via bash arithmetic expansion $((...)), allowing execution of arbitrary commands nested inside an allowlisted command like echo. This vulnerability is fixed in 0.229.0.
Title Zed: Allowlist Bypass via Bash Arithmetic Expansion in Terminal Tool Permissions
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
May 29, 2026, 3:15 PM
Reserved
May 6, 2026, 3:49 PM
Status
Analyzed
Published
May 28, 2026, 5:16 PM
Modified
Jun 17, 2026, 10:50 AM