VULNERABILITY INTELLIGENCE

CVE-2026-81518

CVSS score7.5 HIGH
EPSS probability0.25%
CISA KEVNot currently listed
Published2026-08-28
Last modified2026-09-29
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Description

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.

Weakness classification

  • cna@mongodb.com: CWE-295

Primary references