| Title | a2aproject a2a-rs a2a-server-lf ≤ 0.4.4 CWE-362 |
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| Description | InMemoryTaskStore::update and handler::save_task write any incoming state with no state-machine validation, so a COMPLETED, FAILED, CANCELED or REJECTED task can be silently rewritten to SUBMITTED or another non-terminal state. cancel_task is also check-then-act with no lock, so two concurrent cancels can both pass the terminal check or race with completion. |
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| Source | ⚠️ https://github.com/a2aproject/a2a-rs/pull/126 |
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| User | colorfullbz (UID 86308) |
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| Submission | 10/06/2026 07:47 (23 days ago) |
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| Moderation | 10/20/2026 17:57 (14 days later) |
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| Status | Accepted |
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| VulDB entry | 422869 [a2aproject a2a-rs up to 0.4.4 inmemory.rs update race condition] |
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| Points | 19 |
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