medium5.3
CVE-2026-82056
A race condition in MongoDB server's text index query parsing can cause a heap use-after-free read when handling upsert retry paths.
Impact
A race condition in MongoDB server's text index query parsing can cause a heap use-after-free read when handling upsert retry paths. Under certain concurrent index lifecycle operations, a raw pointer to internal text index metadata may be dereferenced after the underlying structures have been freed, leading to a server crash. An authenticated user with readWrite privileges can trigger this condition through specific concurrent text-search and index management operations, resulting in denial of service for all connected clients. This
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mongodb | Mongodb | from 7.0.0 before 7.0.41 from 8.0.0 before 8.0.30 from 8.3.0 before 8.3.9 |