CVE-2026-82056
Medium
Description
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
SeverityMedium
CVSS5.3
Exploit probability—
Product
Mongodb
PublishedSep 8, 2026
First seenSep 8, 2026
Weakness typeCWE-416Use after free
How to fix
Update
- mongodb mongodb7.0.41, 8.0.30, 8.3.9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mongodb mongodb | 7.0.0 ≤ v < 7.0.41, 8.0.0 ≤ v < 8.0.30, 8.3.0 ≤ v < 8.3.9 | 7.0.41, 8.0.30, 8.3.9 |
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