CVE-2026-84962

EUVD-2026-70516
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.
CRLF Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.2 MEDIUM
NETWORK
HIGH
HIGH
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 7.54%
Affected Products (NVD)
VendorProductVersion
mongodblibmongocrypt
𝑥
< 1.20.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libmongocrypt
bookworm
postponed
forky
1.20.5-1
fixed
sid
1.21.0-1
fixed
trixie
no-dsa
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libmongocrypt
jammy
needs-triage
noble
needs-triage
resolute
needs-triage
Common Weakness Enumeration
References
https://jira.mongodb.org/browse/MONGOCRYPT-960