CVE-2026-46483— Vim: Command injection in tar#Vimuntar via missing shellescape {special} flag
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I. Basic Information for CVE-2026-46483
Vulnerability Information
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Vulnerability Title
Vim: Command injection in tar#Vimuntar via missing shellescape {special} flag
Source: NVD (National Vulnerability Database)
Vulnerability Description
Vim is an open source, command line text editor. Prior to 9.2.0479, a command injection vulnerability exists in tar#Vimuntar() in runtime/autoload/tar.vim when decompressing .tgz archives on Unix-like systems. The function builds :!gunzip and :!gzip -d commands using shellescape(tartail) without the {special} flag, allowing a crafted archive filename to trigger Vim cmdline-special expansion and execute shell commands in the user's context. This vulnerability is fixed in 9.2.0479.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: NVD (National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-46483
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- https://github.com/vim/vim/releases/tag/v9.2.0479x_refsource_MISC
- https://github.com/vim/vim/security/advisories/GHSA-2fpv-9ff7-xg5wx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2026-46483
IV. Related Vulnerabilities
Same product: vim
- CVE-2026-45130
Vim: Heap Buffer Overflow in spell file loading - CVE-2026-44656
Vim: OS Command Injection via 'path' completion - CVE-2026-42307
Vim: OS Command Injection in netrw - CVE-2026-41411
Vim: Command injection via backtick expansion in tag filenam - CVE-2026-39881
Vim Ex command injection in Vims NetBeans integration
Same vendor: vim
- CVE-2026-45130
Vim: Heap Buffer Overflow in spell file loading - CVE-2026-44656
Vim: OS Command Injection via 'path' completion - CVE-2026-42307
Vim: OS Command Injection in netrw - CVE-2026-41411
Vim: Command injection via backtick expansion in tag filenam - CVE-2026-39881
Vim Ex command injection in Vims NetBeans integration
Same weakness: CWE-78
V. Comments for CVE-2026-46483
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