CVE-2026-84964

Summary

A double free in the OpenSSL-based TLS certificate revocation checking path of the MongoDB C Driver can be reached by a TLS endpoint that the client already trusts. During the handshake, specially formed certificate data can cause the same heap object to be released twice. An unauthenticated party acting as the trusted endpoint may cause the connecting client application to terminate unexpectedly.

Affected Software

VendorProductVersion RangeStatus
MongoDBC Driver1.17.0 < 1.30.9affected
MongoDBC Driver2.0.0 < 2.5.2affected

Weaknesses

  • CWE-415: CWE-415: Double Free

ADP Enrichment

CISA ADP Vulnrichment

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

References