CVE-2026-81523

EUVD-2026-67207
A missing input-validation issue in MongoDB libmongocrypt's automatic-encryption context setup allows a caller-supplied database identifier to be accepted without sanitization. The resulting impact is limited to incorrect schema selection, which may lead to limited disclosure or modification of information handled by the application.
Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
mongodbCNA
4.4 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 0.08%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
mongodblibmongocrypt
1.0.0 ≤
𝑥
< 1.20.3
CNA
Debian logo
Debian Releases
Debian Product
Codename
libmongocrypt
bookworm
vulnerable
bullseye
vulnerable
forky
vulnerable
sid
1.20.3-1
fixed
trixie
no-dsa
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://github.com/mongodb/libmongocrypt/releases/tag/1.20.3
https://jira.mongodb.org/browse/MONGOCRYPT-977