Zed: Allowlist Bypass via Bash Arithmetic Expansion in Terminal Tool Permissions
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.
Severity high: primary CNA CVSS 8.6 v3.1 (worst CNA-provided scenario) Not listed in this KEV snapshot. Forecast present in this snapshot.
Published 2026-05-28T16:16:05.409Z. Updated 2026-05-29T15:15:18.570Z.