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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://www.mongodb.com/docs/bi-connector/current/release-notes/

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-28 22:16

Updated : 2026-09-01 21:03

NVD link : CVE-2026-81518

Mitre link : CVE-2026-81518

CVE.ORG link : CVE-2026-81518

JSON object : View

Products Affected

No product.

CWE

CWE-295

Improper Certificate Validation

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