CVE-2026-44466

Name: CVE-2026-44466
Creator: NVD / NIST
Published: 2026-05-28T17:16:30.317+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.6/10EPSS 0.23%

Last modified Jun 17, 2026

CVE-2026-44466 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. 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. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.6/10

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

EPSS Probability

0.23%

13.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Zed	Zed	< 0.229.0

References

https://github.com/zed-industries/zed/security/advisories/GHSA-c99f-97vf-4h5hExploit, Vendor Advisory
https://github.com/zed-industries/zed/security/advisories/GHSA-c99f-97vf-4h5hExploit, Vendor Advisory

Timeline

Published: May 28, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-44466?

How severe is CVE-2026-44466?

CVE-2026-44466 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.

How do I fix CVE-2026-44466?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-44466?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST