CVE-2026-44463 PUBLISHED

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

Assigner: GitHub_M
Reserved: 06.05.2026 Published: 28.05.2026 Updated: 29.05.2026

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.

Metrics

CVSS 3.1

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

Attack Vector	Local	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	Required	Availability Impact	High

CVSS 3.1

Product Status

Vendor	zed-industries
Product	zed
Versions	Version < 0.229.0 is affected

References

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

Problem Types

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