A flaw was found in Vim's netrw plugin. A crafted filename containing quote characters and expression fragments can break out of the quoted context during mark/unmark operations, allowing arbitrary Vimscript execution. This can be leveraged to run shell commands with the privileges of the user running Vim.
History

Thu, 20 Aug 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Wed, 19 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 19 Aug 2026 14:15:00 +0000

Type Values Removed Values Added
Description A flaw was found in Vim's netrw plugin. A crafted filename containing quote characters and expression fragments can break out of the quoted context during mark/unmark operations, allowing arbitrary Vimscript execution. This can be leveraged to run shell commands with the privileges of the user running Vim.
Title Vim: vimscript injection via unescaped filename in netrw s:netrwmarkfile() filter() expression allows arbitrary code execution
First Time appeared Redhat
Redhat enterprise Linux
Redhat openshift
Weaknesses CWE-94
CPEs cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat openshift
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-08-19T16:53:18.201Z

Reserved: 2026-05-04T18:07:21.843Z

Link: CVE-2026-43961

cve-icon Vulnrichment

Updated: 2026-08-19T14:15:30.768Z

cve-icon NVD

Status : Received

Published: 2026-08-19T14:17:31.793

Modified: 2026-08-19T17:18:48.650

Link: CVE-2026-43961

cve-icon Redhat

Severity : Important

Publid Date: 2026-08-19T13:26:06Z

Links: CVE-2026-43961 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-20T03:15:03Z