High [CVE-2026-55895] Arbitrary code execution via Vimscript code injection in netrw plugin
This high-severity Red Hat Linux advisory covers CVE-2026-55895.
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Summary
Vim is an open source, command line text editor. Prior to 9.2.0663, a Vimscript code injection vulnerability exists in s:NetrwLocalRmFile() in the netrw plugin (runtime/pack/dist/opt/netrw/autoload/netrw.vim) when deleting a local file from the browser.
A filename derived from the buffer's directory listing is interpolated into an Ex command line passed to:execute with only the backslash character escaped, allowing a crafted filename containing a bar (|) to terminate the intended command and execute arbitrary Vimscript, including shell commands via:call system() and:!.
This vulnerability is fixed in 9.2.0663. A flaw was found in Vim, specifically within the netrw plugin.
A local user could exploit a Vimscript code injection vulnerability by attempting to delete a specially crafted local file from the browser. This could lead to arbitrary code execution on the affected system.
This is an Important vulnerability in Vim's netrw plugin that could lead to arbitrary code execution. This risk is mitigated by the requirement for local user interaction and a specific sequence of actions.
Red Hat severity: Important — CVSS 7.8 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). Weakness: CWE-94.
- < 9.2.0663
Official advisory · high-confidence parse· fetched 21 days ago·verify at source
- 9.2.0663
Official advisory · high-confidence parse· fetched 21 days ago·verify at source
Mitigation checklist
- To mitigate this vulnerability, users should avoid deleting untrusted or suspicious files directly from Vim's netrw file browser. Exercise caution when interacting with files from unknown or untrusted sources within the editor environment.
Official advisory · high-confidence parse· fetched 21 days ago·verify at source
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