Bug 2512701 (CVE-2026-48120)

Summary: CVE-2026-48120 kakoune: Kakoune: Remote Code Execution via malicious backup files
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in Kakoune, a code editor. A local attacker could exploit a vulnerability in the bundled `autorestore.kak` script by crafting malicious backup files. When a user simply opens a file, these malicious backup files can lead to the execution of arbitrary Kakoune and shell commands. This results in remote code execution on the affected system.
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Description OSIDB Bzimport 2026-08-07 22:41:22 UTC
Kakoune is a code editor. Prior to version 2026.05.21, the bundled, enabled by default, `autorestore.kak` script can be exploited by malicious backup files leading to arbitrary kakoune and shell commands being executed by simply opening a file. Kakoune 2026.05.21 fixes the issue. As a workaround, add `autorestore-disable` to the user kakrc will disable the autorestore feature.