Vulnerability intelligence

CVE-2026-82064

Unauthenticated Denial of Service in MongoDB Server via Assertion Failure in Read Concern Processing on Replica Set Members

MongoDB MongoDB Server CWE-617

A security issue in MongoDB Server allows an unauthenticated network user to cause a denial of service on a specific type of replica set member. The server contains an assertion in its read concern processing logic that can be reached without authentication, and the assertion's assumptions about internal state do not hold for all member configurations, causing the server process to terminate.

CVSS Score

8.7

High

EPSS — Exploit Probability

0.5%

Riskier than 43% of all CVEs · checked 2026-10-24

Exploitation

Not in CISA KEV

KEV does not include every exploited vulnerability

Remediation

Patch available

Vendor fix published