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MEDIUM · 4.2

CVE-2026-84962

An unauthorized user with key vault write access may cause an authorized client to issue arbitrary authenticated Google Cloud KMS API calls under the authorized user's identity, escalating database-le...

Vulnerability Description

An unauthorized user with key vault write access may cause an authorized client to issue arbitrary authenticated Google Cloud KMS API calls under the authorized user's identity, escalating database-level access into cloud key control and defeating client-side encryption.

CVSS Score

4.2

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
MongodbLibmongocrypt< 1.20.2

Related Weaknesses (CWE)

CWE-93

References

FAQ

What is CVE-2026-84962?

CVE-2026-84962 is a vulnerability with a CVSS score of 4.2 (MEDIUM). An unauthorized user with key vault write access may cause an authorized client to issue arbitrary authenticated Google Cloud KMS API calls under the authorized user's identity, escalating database-le...

How severe is CVE-2026-84962?

CVE-2026-84962 has been rated MEDIUM with a CVSS base score of 4.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-84962?

Check the references section above for vendor advisories and patch information. Affected products include: Mongodb Libmongocrypt.