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I. Basic Information for CVE-2026-27976
Vulnerability Information

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Vulnerability Title
Zed Extension Sandbox Escape via Tar Symlink Following
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-61
Source: NVD (National Vulnerability Database)
Vulnerability Title
Zed 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zed是Zed Industries开源的一个代码编辑器。 Zed 0.224.4之前版本存在安全漏洞,该漏洞源于tar提取器创建符号链接时未经验证,可能导致代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
zed-industrieszed < 0.224.4 -
II. Public POCs for CVE-2026-27976
#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
kimi-k2.5 · 13404 chars
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III. Intelligence Information for CVE-2026-27976
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IV. Related Vulnerabilities
V. Comments for CVE-2026-27976

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