CVE-2026-9742: CWE-1287 Improper validation of specified type of input in MongoDB MongoDB Server
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.
CVE-2026-9742: CWE-1287 Improper validation of specified type of input in MongoDB MongoDB Server
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.
CVSS v4.0
Score 8.2high
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mongodb
- Date Reserved
- 2026-05-27T17:34:08.786Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2892f48dd33fbd858e3b38
Added to database: 6/9/2026, 10:25:56 PM
Last updated: 6/10/2026, 4:58:57 AM
Views: 6
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