| Package | Affected versions | Patched versions |
|---|---|---|
| mongodb | ≥ 7.0.0, < 7.0.35≥ 8.0.0, < 8.0.24≥ 8.2.0, < 8.2.10≥ 8.3.0, < 8.3.3 | 7.0.358.0.248.2.108.3.3 |
This issue can occur when running an aggregation pipeline that uses the internal $exchange stage configured with key-range partitioning and order-preserving delivery. If a single key range produces enough documents to fill its exchange buffer (that is, many results are routed to the same consumer), the server reaches the code path where a full per-consumer buffer is detected but the internal "high watermark" for that key range is not updated as intended.
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