CVE-2026-27976
HIGHDescription
Zed, a code editor, has an extension installer allows tar/gzip downloads. Prior to version 0.224.4, the tar extractor (`async_tar::Archive::unpack`) creates symlinks from the archive without validation, and the path guard (`writeable_path_from_extension`) only performs lexical prefix checks without resolving symlinks. An attacker can ship a tar that first creates a symlink inside the extension workdir pointing outside (e.g., `escape -> /`), then writes files through the symlink, causing writes to arbitrary host paths. This escapes the extension sandbox and enables code execution. Version 0.224.4 patches the issue.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploit Intelligence
Low risk: more likely to be exploited than 40% of all known CVEs.
References
Related Vulnerabilities
Other CWE-61 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-28189 | Critical | 10.0 | 7.2% | - | - |
| CVE-2024-28185 | Critical | 10.0 | 7.1% | - | - |
| CVE-2019-11249 | Medium | 6.5 | 3.7% | - | Fix |
| CVE-2019-11246 | Medium | 6.5 | 3.6% | - | Fix |
| CVE-2019-16775 | High | 7.7 | 3.3% | - | Fix |
| CVE-2019-11251 | Medium | 4.8 | 2.6% | - | Fix |
Common questions
How do I fix CVE-2026-27976?
Upgrade zed to 0.224.4 or later.
Is CVE-2026-27976 being actively exploited?
Not that we know of. CVE-2026-27976 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.49% is the estimated probability that it will be exploited in the next 30 days. That is higher than 40% of all scored CVEs.
How severe is CVE-2026-27976?
CVE-2026-27976 has a CVSS v3 base score of 8.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2026-27976 affect?
Published advisories record a fix for zed (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
Embed a live status badge for CVE-2026-27976
Markdown
[](https://tridentstack.com/cve/CVE-2026-27976)HTML
<a href="https://tridentstack.com/cve/CVE-2026-27976"><img src="https://tridentstack.com/cve/badge/CVE-2026-27976.svg" alt="CVE-2026-27976"></a>Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-05.