CVE-2026-44466: Zed is a code editor

Q: How do I fix CVE-2026-44466?

zed: upgrade to 0.229.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-44466 being exploited?

CVE-2026-44466 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-44466 affect?

CVE-2026-44466 affects zed. Severity is high (CVSS 8.6). 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 vulnerabilit

Q: How urgent is CVE-2026-44466?

Priority 40/100. High severity; Public exploit reference

This month

HIGH 8.6UPGRADE

CVE-2026-44466 is a high-severity flaw (CVSS 8.6) affecting zed. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.6 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-78
Published	2026-05-28
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: zed

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-28 17:16 UTCPublished CVE record published
2026-06-17 10:50 UTCUpdated Record last modified

zed zed UPGRADE

Affected: < 0.229.0

Fixed in: 0.229.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy zed || rpm -q zed || zed --version

2. UPGRADE to 0.229.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade zed

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade zed

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-44466?

zed: upgrade to 0.229.0. Exact commands for each OS are on this page.

Is CVE-2026-44466 being exploited?

CVE-2026-44466 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-44466 affect?

CVE-2026-44466 affects zed. Severity is high (CVSS 8.6). 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 vulnerabilit

How urgent is CVE-2026-44466?

Priority 40/100. High severity; Public exploit reference

Related CVEs

CVE-2026-44465 HIGH 8.6 UPGRADE Zed is a code editor
CVE-2026-44463 HIGH 8.6 UPGRADE Zed is a code editor
CVE-2026-44462 MEDIUM 6.4 UPGRADE Zed is a code editor
CVE-2026-44461 HIGH 8.6 UPGRADE Zed is a code editor

References

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