What’s Vulnerable › Vulnerabilities
CVE-2026-82053: Improper Session Handling in MongoDB Server LDAP Authorization Integration Leads to Incorrect Role Assignment
- Severity: high (CVSS 8.1 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 exists in MongoDB's LDAP authorization integration where pooled LDAP connections can retain stale authentication identities after user authentication under certain configurations. Subsequent authorization queries may execute under an unintended LDAP identity rather than the expected one. This can result in incorrect role assignments based on the LDAP directory's access control configuration, potentially allowing an authenticated user to acquire elevated privileges that were not intended by the deployment's authorization policy.
Affected products
- MongoDB: from 7.0.0 before 7.0.41; from 8.0.0 before 8.0.30; from 8.2.0 through 8.2.12; from 8.3.0 before 8.3.9; 9.0.0-alpha0, 9.0.0-alpha1 — 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
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