Vim Modeline Bypass Vulnerability Let Attackers Execute Arbitrary OS Commands

A newly discovered high-severity vulnerability in the popular Vim text editor exposes users to arbitrary command execution on the operating system. Tracked as CVE-2026-34982, the flaw relies on a modeline sandbox bypass that triggers when a victim opens a specially crafted file. Security researchers “dfwjj x” and Avishay Matayev identified a vulnerability chain that affects […]

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