CVE-2026-81518
When mongosqld is configured with a client certificate authority file, the listener requests a client certificate during the TLS handshake but does not require one, so a client that presents no certificate is still accepted. In deployments that rely on client certificates as the sole means of identifying users, a remote party with network access to the listener can therefore establish a session and read the MongoDB data exposed through the connector.
- Published Aug 28, 2026
- CVSS 8.7 high
- 0.3% chance of exploitation in the next 30 days (EPSS)