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CVE-2026-46483— Vim: Command injection in tar#Vimuntar via missing shellescape {special} flag

Quick assessment

Affected
vim vim
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Vim是Vim开源的一款跨平台的文本编辑器。 Vim 9.2.0479之前版本存在操作系统命令注入漏洞，该漏洞源于tar#Vimuntar在解压缩.tgz归档时使用shellescape(tartail)构建命令时未使用{special}标志，可能导致精心制作的归档文件名触发Vim cmdline-special扩展并在用户环境中执行shell命令。以下版本受到影响：9.2.0479之前版本。

CVSS 3.6 · Low EPSS 0.55% · P44

Possible ATT&CK Techniques 1 AI

T1059.004 · Unix Shell

Affected Version Matrix 1

VendorProduct Version RangeStatus
vim vim < 9.2.479 affected
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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: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
Vulnerability Title
Vim 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vim是Vim开源的一款跨平台的文本编辑器。 Vim 9.2.0479之前版本存在操作系统命令注入漏洞，该漏洞源于tar#Vimuntar在解压缩.tgz归档时使用shellescape(tartail)构建命令时未使用{special}标志，可能导致精心制作的归档文件名触发Vim cmdline-special扩展并在用户环境中执行shell命令。以下版本受到影响：9.2.0479之前版本。
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

Vendor Product Affected Versions CPE Subscribe
vim vim < 9.2.479 -

II. Public POCs for CVE-2026-46483

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III. Intelligence Information for CVE-2026-46483

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Patches & Fixes for CVE-2026-46483 (1)

Vendor Advisories for CVE-2026-46483 (1)

Vendor Pages for CVE-2026-46483 (1)

IV. Related Vulnerabilities

Same product: vim
Same vendor: vim
Same weakness: CWE-78

V. Comments for CVE-2026-46483

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