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

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Summary

CVECVE-2026-44463
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-28 17:16:29 UTC
Updated2026-06-03 01:11:27 UTC
DescriptionZed 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.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

EPSS: 0.000310000 probability, percentile 0.092390000 (date 2026-06-02)

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
3.1[email protected]Secondary8.6HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
3.1CNADECLARED8.6HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Zed Zed All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Zed-industries Zed affected < 0.229.0 Not specified

References

ReferenceSourceLinkTags
github.com/zed-industries/zed/security/advisories/GHSA-c3g6-c3ff-69cg [email protected] github.com Exploit, Vendor Advisory
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