OpenCode Flaw Lets Malicious MCP Servers Execute Code During Sign-In on Windows and WSL
A flaw in the OpenCode AI coding agent allowed a malicious or hijacked MCP server to run code on a developer's Windows or WSL machine when the developer signed in. OpenCode connects to MCP (Model Context Protocol) servers to add outside tools, and such code would run with the developer's own access. Anomaly, the company behind OpenCode, fixed the flaw in version 1.18.33 on September
What happened
A flaw in the OpenCode AI coding agent allowed a malicious or hijacked MCP server to run code on a developer's Windows or WSL machine when the developer signed in. OpenCode connects to MCP (Model Context Protocol) servers to add outside tools, and such code would run with the developer's own access. Anomaly, the company behind OpenCode, fixed the flaw in version 1.18.33 on September
Why it matters
The development may change operating conditions or market expectations around Security. Further confirmation and measurable outcomes matter.
Affected entities
View evidence
1 reports · 1 original report · 1 independent
- The Hacker NewsPrimary source · Supports · EN · 100%OpenCode Flaw Lets Malicious MCP Servers Execute Code During Sign-In on Windows and WSL ↗
Claims
- OpenCode Flaw Lets Malicious MCP Servers Execute Code During Sign-In on Windows and WSL Observed
Conflicts
No material conflict detected in the available evidence.
Timeline
- First reported
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