High · published August 11, 2026
An issue in MongoDB Server's aggregation framework could allow an authenticated user to trigger an out-of-bounds memory read by providing a specially formed numeric parameter in a certain aggregation pipeline stage. This could result in a server crash (denial of service) and may potentially expose a limited amount of memory contents.
| Product | Versions | Fixed in |
|---|---|---|
| mongodb/mongodb | ≥ 7.0.0, < 7.0.40 | 7.0.40 |
| mongodb/mongodb | ≥ 8.0.0, < 8.0.29 | 8.0.29 |
| mongodb/mongodb | ≥ 8.2.0, ≤ 8.2.12 | — |
| mongodb/mongodb | ≥ 8.3.0, < 8.3.8 | 8.3.8 |
| mongodb/mongodb | all versions | — |
| mongodb/mongodb | all versions | — |
| mongodb/mongodb | all versions | — |