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I. Basic Information for CVE-2026-31802
Vulnerability Information

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Vulnerability Title
node-tar Symlink Path Traversal via Drive-Relative Linkpath
Source: NVD (National Vulnerability Database)
Vulnerability Description
node-tar is a full-featured Tar for Node.js. Prior to version 7.5.11, tar (npm) can be tricked into creating a symlink that points outside the extraction directory by using a drive-relative symlink target such as C:../../../target.txt, which enables file overwrite outside cwd during normal tar.x() extraction. This vulnerability is fixed in 7.5.11.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Vulnerability Title
node-tar 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
node-tar是isaacs个人开发者的一款用于文件压缩/解压缩的软件包。 node-tar 7.5.11之前版本存在安全漏洞,该漏洞源于可诱骗其通过驱动器相对符号链接目标创建指向提取目录外的符号链接,可能导致文件覆盖。
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
isaacsnode-tar < 7.5.11 -
II. Public POCs for CVE-2026-31802
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III. Intelligence Information for CVE-2026-31802
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IV. Related Vulnerabilities
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