Obsidian plugins are (mostly) dangerous
Research has revealed serious vulnerabilities in the Excalidraw plugin for Obsidian, highlighting the risks associated with developer tools. ZeroQuarry identified numerous high-severity issues, many of which stem from the complex interactions within the plugin's ecosystem. Following the discovery, several fixes have been implemented to mitigate these vulnerabilities.
- ▪ZeroQuarry found 41 high-severity, 32 medium-severity, and 2 low-severity vulnerabilities in the Excalidraw plugin.
- ▪The vulnerabilities identified were not simple code issues but rather product-context findings related to how Obsidian vaults and Excalidraw drawings function.
- ▪Developer tools like the Excalidraw plugin are particularly vulnerable due to their rich extension systems and broad access to sensitive user data.
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Research ZeroQuarry Research May 20, 2026 rce obsidian Many serious vulnerabilities found in Obsidian's Excalidraw plugin ZeroQuarry identified and helped fix a large number of vulnerabilities in the Excalidraw plugin for Obsidian. Request a private scan -> What we are withholding Disclosure status Mitigation available Excalidraw now has shipped a number of fixes. We are limiting exploit detail to avoid showing weaponized payloads. Class Remote code execution Surface Obsidian community plugin Posture Disclosure-safe Developer tools are an unusually high-value target Example 1: A drawing file could execute script on open Example 2: A pretty icon could become executable UI Example 3: A link in a drawing could become an Obsidian command Example 4: A cleanup feature could delete the wrong…
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