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

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

EPSS (exploitation in 30 days)

0.23% · top 86% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: poc · Automatable: no · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.6.

Weakness

• CWE-184: Incomplete List of Disallowed Inputs (opens in a new tab)All about CWE-184 and its CVEs
• CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (opens in a new tab)All about CWE-78 and its CVEs

Affected products

• zed-industries · zed

  • affected < 0.229.0

References (1)

• https://github.com/zed-industries/zed/security/advisories/GHSA-c3g6-c3ff-69cg (opens in a new tab)x_refsource_CONFIRM

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-44463](https://trackcve.app/badge/CVE-2026-44463.svg)](https://trackcve.app/cve/CVE-2026-44463)

Record last updated 29 May 2026, 15:15 UTC.