CVE-2026-82056 — Race Condition in MongoDB Server Text Index Query Parsing Leads to Heap Use-After-Free and Denial of Service
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 ope…
Published: 2026-09-08 · CVSS: 6.0 · CVSS 4.0
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
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7