CVE-2026-8201

Summary

A use-after-free vulnerability exists in MongoDB's Field-Level Encryption (FLE) query analysis component, affecting client-side uses of mongocryptd and crypt_shared. Triggering this vulnerability requires control over the structure of a client's FLE-related query.

This issue impacts MongoDB Server’s mongocryptd component v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.

Affected Software

VendorProductVersion RangeStatus
MongoDB, Inc.MongoDB Server7.0 < 7.0.34affected
MongoDB, Inc.MongoDB Server8.0 < 8.0.23affected
MongoDB, Inc.MongoDB Server8.2 < 8.2.9affected
MongoDB, Inc.MongoDB Server8.3 < 8.3.2affected

Weaknesses

  • CWE-416: CWE-416: Use After Free

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References