CVE-2026-82064
High
Description
A security issue in MongoDB Server allows an unauthenticated network user to cause a denial of service on a specific type of replica set member. The server contains an assertion in its read concern processing logic that can be reached without authentication, and the assertion's assumptions about internal state do not hold for all member configurations, causing the server process to terminate.
SeverityHigh
CVSS8.7
Exploit probability44. percentile0.5%
Product
Mongodb
PublishedSep 8, 2026
First seenSep 8, 2026
Weakness typeCWE-617CWE-617
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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