What’s Vulnerable › Vulnerabilities
CVE-2026-82073: Improper Validation in MongoDB Server Aggregation Framework Allows Authorization Bypass and Unauthorized Collection Access with Atlas Search
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% 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-863
Description
A security issue in the MongoDB Server aggregation framework allows an authenticated user with limited read privileges to bypass view-level authorization checks and access data from unauthorized collections when Atlas Search features are in use. The issue stems from insufficient validation of an internal command parameter that can be set by external clients, causing a security check to be improperly skipped.
Affected products
- MongoDB: from 8.3.0 before 8.3.9 — fixed in 8.3.9
How to fix
Upgrade to a fixed version: MongoDB 8.3.9. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2026-82073 or the next vulnerability affects your stack