CVE-2026-73077: Vim: Arbitrary Code Execution via Shell Keyword Lookup

Published Aug 11, 2026
·
Updated

Vim is an open source, command line text editor. Prior to 9.2.0839, the runtime/ftplugin/sh.vim, runtime/ftplugin/zsh.vim, and runtime/ftplugin/ps1.vim filetype plugins pass attacker-controlled Visual-mode selections from K through keywordprg commands without safely separating shell arguments. fnameescape() and PATHESCCHARS do not neutralize shell metacharacters before ShKeywordPrg, ZshKeywordPrg, or GetHelp invokes bash, zsh, or PowerShell, allowing arbitrary operating-system commands to execute with the privileges of the user running Vim. This issue is fixed in version 9.2.0839.

Affected Software

1 affected component
vim Vim<9.2.0839

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Vim to a version that resolves this vulnerability.

    Fixed in 9.2.0839

Event History

Aug 11, 2026
CVE Published
via MITRE·03:39 PM
Data Sourced
via MITRE·03:39 PM
DescriptionWeakness
Data Sourced
via NVD·04:17 PM
DescriptionSeverityWeakness
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2026-73077?

The severity of CVE-2026-73077 is rated at 77, indicating a high risk of exploitation.

2

How do I fix CVE-2026-73077?

To fix CVE-2026-73077, upgrade to Vim version 9.2.0839 or later.

3

Who is affected by CVE-2026-73077?

Users of Vim versions prior to 9.2.0839 are affected by CVE-2026-73077.

4

What type of vulnerability is CVE-2026-73077?

CVE-2026-73077 is classified as an OS Command Injection vulnerability.

5

What components of Vim are involved in CVE-2026-73077?

The vulnerability involves the runtime/ftplugin/sh.vim, runtime/ftplugin/zsh.vim, and runtime/ftplugin/ps1.vim filetype plugins.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203
CVE-2026-73077 - Vim: Arbitrary Code Execution via Shell Keyword Lookup - SecAlerts