What’s Vulnerable › Vulnerabilities
CVE-2026-82075: Uncontrolled Resource Consumption in MongoDB Sharded Cluster Router Allows Unauthenticated Denial of Service
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-08 · updated 2026-09-16
- Weakness: CWE-770
Description
An uncontrolled resource consumption weakness exists in the request-handling path of the MongoDB sharded-cluster router process. A client that has network access to a router port and has not authenticated can supply connection-monitoring parameters that cause the server to expend CPU resources without any rate limiting, degrading or denying service to legitimate clients. No authentication, elevated privileges, or user interaction is required. Only availability is affected; data confidentiality and integrity are not impacted.
Affected products
- MongoDB: from 7.0.0 before 7.0.41; from 8.0.0 before 8.0.30; from 8.3.0 before 8.3.9 — fixed in 7.0.41, 8.0.30, 8.3.9
How to fix
Upgrade to a fixed version: MongoDB 7.0.41, 8.0.30, 8.3.9. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2026-82075 or the next vulnerability affects your stack