CVE-2026-64650

The CVE concerns the @ai-sdk/harness-opencode tool (HarnessV1 adapter backed by @openai/codex-sdk) that drives the codex CLI. Prior to version 1.0.29, it relayed requests from any process whose command line contained an allowed helper script path (Codex CLI shim), allowing untrusted sandbox code ...

CVE-2026-64651 AI SDK OpenCode Harness Tool Relay Authorization Bypass

The @ai-sdk/harness-opencode tool connects HarnessAgent to OpenCode through a sandboxed bridge. Prior to version 1.0.28, the tool relay authorizes requests from any process whose command line contains an allowed helper script path host-tool-mcp.mjs. This allows untrusted code executing in the...