| Title | ag-ui-protocol ag-ui v1.0 CWE-459 |
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| Description | When a run is interrupted, tool-call IDs added to the middleware's blocked set persist after the run ends. A subsequent run that legitimately reuses the same tool-call ID is filtered out, and verifyEvents then aborts the stream because a tool call was started but never completed.
No execution-bypass path was found (the filter cannot be used to make a blocked call execute); the issue is residual state producing false-positive filtering. |
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| Source | ⚠️ https://github.com/ag-ui-protocol/ag-ui/issues/2443 |
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| User | meraklbz (UID 87053) |
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| Submission | 08/18/2026 05:14 (1 month ago) |
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| Moderation | 09/28/2026 04:53 (1 month later) |
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| Status | Accepted |
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| VulDB entry | 410975 [ag-ui-protocol ag-ui up to 2026-09-07 Middleware filter-tool-calls.ts FilterToolCallsMiddleware cleanup] |
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| Points | 20 |
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