CVE-2026-106433 Affecting libmongocrypt package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.27% (18th percentile)

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  • Snyk IDSNYK-ECHOLATEST-LIBMONGOCRYPT-20746711
  • published10 Oct 2026
  • disclosed8 Oct 2026

Introduced: 8 Oct 2026

NewCVE-2026-106433  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest libmongocrypt.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libmongocrypt package and not the libmongocrypt package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

Improper state management in MongoDB libmongocrypt can cause provider-specific data to be treated as an incompatible type when cleaning up a key document containing duplicate masterKey fields. An authenticated actor who can modify key vault documents, or a server that returns such a key document, can cause invalid memory access and invalid frees in the client process. This can terminate the application or corrupt process memory.