CVE-2026-44461

Description

Zed is a code editor. Prior to 0.227.1, Zed builds SSH/WSL remote commands as a shell command string that starts with exec env ..., but environment variable keys are inserted without shell quoting or validation. If an attacker can control an environment variable key (for example via project terminal settings), shell expansions in the key (such as $(...)) are evaluated by the remote shell when a terminal is opened. This can lead to arbitrary command execution on the remote host under the victim user's account. This vulnerability is fixed in 0.227.1.

CVSS v3.1 Score

8.6

HIGH

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

EPSS — Exploit Prediction

0.0023

Probability of exploitation

0.14%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-78 OS Command Injection

Affected Products

Vendor	Product	Versions
zed	zed	< 0.227.1

References

Advisories & Patches

https://github.com/zed-industries/zed/security/advisories/GHSA-63qj-jc2q-7hg5 https://github.com/zed-industries/zed/security/advisories/GHSA-63qj-jc2q-7hg5

Exploits

https://github.com/zed-industries/zed/security/advisories/GHSA-63qj-jc2q-7hg5 https://github.com/zed-industries/zed/security/advisories/GHSA-63qj-jc2q-7hg5

Frequently Asked Questions

What is CVE-2026-44461? +

Zed is a code editor. Prior to 0.227.1, Zed builds SSH/WSL remote commands as a shell command string that starts with exec env ..., but environment variable keys are inserted without shell quoting or validation. If an attacker can control an environment variable key (for example via project terminal settings), shell expansions in the key (such as $(...)) are evaluated by the remote shell when a terminal is opened. This can lead to arbitrary command execution on the remote host under the victim user's account. This vulnerability is fixed in 0.227.1. It has a CVSS v3.1 base score of 8.6 (HIGH).

How severe is CVE-2026-44461? +

CVE-2026-44461 has a CVSS v3.1 score of 8.6 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0023, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-44461? +

CVE-2026-44461 affects products from zed, specifically: zed. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-44461? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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