Critical Security Flaw in Vim Packages: Arbitrary Command Execution Vulnerability
Summary
ALSA-2026:77359: Important: vim security update. Affects vim-X11 versions < 2:8.0.1763-32.el8_10. Fixed in 2:8.0.1763-32.el8_10. How to fix ↓
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Background
Vim (Vi IMproved) is a highly popular text editor that enhances the traditional vi editor with additional features and improvements. It is widely used for programming and text editing due to its efficiency and extensibility. However, a recent vulnerability has been identified that allows for arbitrary command execution through a crafted tags file in C omni-completion, posing significant risks to users and systems relying on this editor.
Vulnerability Detail
The vulnerability, identified as CVE-2026-73073, stems from a flaw in the way Vim processes crafted tags files during C omni-completion. An attacker could exploit this vulnerability to execute arbitrary commands on the affected system, potentially leading to unauthorized access, data breaches, or system compromise. This issue highlights the importance of maintaining updated software and being cautious with file inputs.
How To Fix
Minimum fixed version
2:8.0.1763-32.el8_10
This is the first release that contains the fix.
sudo dnf update vim-X11Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users are advised to avoid using crafted tags files until they can update to the patched version. Additionally, users can limit the permissions of the Vim editor or run it in a restricted environment to mitigate potential risks.
Conclusion
The identified vulnerability in Vim packages poses a significant risk to users and systems. It is crucial to update to the patched version to mitigate the risk of arbitrary command execution. Users should remain vigilant and consider using tools like Vulert to monitor for vulnerabilities in their software.
See every vulnerability recorded for vim-X11 →
FAQ
CVE-2026-73073 is a security vulnerability in Vim that allows for arbitrary command execution through crafted tags files.
You can check if your Vim installation is affected by using tools like Vulert, which monitors open-source vulnerabilities in your software.
The risks include unauthorized command execution, potential data breaches, and system compromise, which can lead to severe security incidents.
Yes, you can avoid using crafted tags files and limit Vim's permissions as a temporary measure until you can apply the update.
More information can be found on the CVE page for CVE-2026-73073 and through security advisories related to Vim.
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