AIKIDO-2026-10027
opencode-ai is vulnerable to Remote Code Execution (RCE)
94
Critical Risk
This Affects:
opencode-aiTL;DR
Affected versions of this package are vulnerable to cross-site scripting on the OpenCode localhost web UI due to unsanitized HTML rendering and a server URL override feature. An attacker can leverage JavaScript execution on http://localhost:4096 to access the /pty/ API endpoints and spawn arbitrary processes, resulting in local code execution.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
opencode-ai is vulnerable to Remote Code Execution (RCE) in versions 0.0.1 - 1.1.9.
How to fix this
Upgrade the opencode library to the patch version.
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