Vim up to 9.2.0846 vimball vimball.vim vimball#RmVimball os command injection

Summaryinfo

A vulnerability was found in Vim up to 9.2.0846 and classified as critical. This vulnerability affects the function vimball#RmVimball of the file runtime/autoload/vimball.vim of the component vimball. The manipulation results in os command injection. This vulnerability is reported as CVE-2026-73076. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, was found in Vim up to 9.2.0846. Affected is the function vimball#RmVimball of the file runtime/autoload/vimball.vim of the component vimball. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Vim is an open source, command line text editor. Prior to 9.2.0847, runtime/autoload/vimball.vim allows a crafted vimball member named .VimballRecord to overwrite the installation record with attacker-chosen commands. When vimball#RmVimball() later processes the matching record entry, the stored Ex commands, including operating-system commands invoked through :!, execute with the privileges of the user running Vim. This issue is fixed in version 9.2.0847.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-73076 since 08/10/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

Upgrading to version 9.2.0847 eliminates this vulnerability.

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Productinfo

Type

• Word Processing Software

Name

• Vim

Version

• 9.2.0846

License

• open-source

Website

• Product: https://github.com/vim/vim/

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