Medium · published September 8, 2026
A use-after-free security issue in the cursor management component of MongoDB Server allows an authenticated user to cause a denial of service. Under specific timing conditions during cursor operations, a stale pointer to a freed resource may be retained and subsequently dereferenced during cursor cleanup, leading to a server process crash.
| Product | Versions | Fixed in |
|---|---|---|
| mongodb/mongodb | ≥ 7.0.0, < 7.0.41 | 7.0.41 |
| mongodb/mongodb | ≥ 8.0.0, < 8.0.30 | 8.0.30 |
| mongodb/mongodb | ≥ 8.3.0, < 8.3.9 | 8.3.9 |