CVE-2026-44463

Zed: Allowlist Bypass via Environment Variable Injection in Terminal Tool Permissions

State: Published
Severity: 8.6 High
Published: May 28, 2026
Updated: May 29, 2026
Reserved: May 6, 2026

Description

Zed is a code editor. Prior to 0.229.0, Zed's terminal tool permission system can be bypassed by prepending environment variable assignments to allowlisted commands, hijacking program behavior (e.g., PAGER) to execute arbitrary code. This vulnerability is fixed in 0.229.0.

Scores

CVSS	Score	Vector	Source
3.1	8.6 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H	GitHub_M

Weaknesses

CWE-184 Incomplete List of Disallowed Inputs
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Affected Products

Product	Versions
zedzed-industries	< 0.229.0Affected

References

https://github.com/zed-industries/zed/security/advisories/GHSA-c3g6-c3ff-69cg

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