CVE & CISA-KEV Catalog

CVE-2026-27976

HIGH
8.8
CVSS v3
NVD

Description

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

Remediation Available
zedNVD
Affected:< 0.224.4Fixed in:0.224.4CVE-2026-27976derived from NVD

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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

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

0.49%probability of exploitation in 30 days
39thpercentile

Low risk: more likely to be exploited than 39% of all known CVEs.

References

Exploit1

Related Vulnerabilities

Other CWE-61 vulnerabilities, ordered by exploit likelihood. View all

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CVE-2024-28189Critical10.07.2%--
CVE-2024-28185Critical10.07.1%--
CVE-2019-11249Medium6.53.7%-Fix
CVE-2019-11246Medium6.53.6%-Fix
CVE-2019-16775High7.73.3%-Fix
CVE-2019-11251Medium4.82.6%-Fix
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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.