CVE-2026-9742
High
Description
When OIDC authentication is enabled in configuration, clients may set specific values in the "mechanism" parameter of the "authenticate" command that lead to server crash. The authenticate command is accessible to unauthenticated clients, leading to pre-auth denial-of-service in affected product configurations.
SeverityHigh
CVSS8.2
Exploit probability28. percentile0.3%
Product
Mongodb
PublishedJun 9, 2026
First seenJun 9, 2026
Weakness typeCWE-1287CWE-1287
How to fix
Update
- mongodb mongodb8.2.10, 8.3.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mongodb mongodb | 8.2.0 ≤ v < 8.2.10, 8.3.0 ≤ v < 8.3.3 | 8.2.10, 8.3.3 |
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