CVE-2026-81523

2.0 lowEPSS 0.10%

Low (2.0) in mongodb libmongocrypt. EPSS 0.10% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

2.0 low

CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

4.4 medium

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS: 0.10% chance of exploitation in the next 30 days; higher than 0% of CVEs (scores of 2026-10-31)
CWE: CWE-74
Published: 2026-08-27
Modified: 2026-09-17
Record from: the NVD, synced 2026-10-19

Affected

mongodb:libmongocrypt

References

https://github.com/mongodb/libmongocrypt/releases/tag/1.20.3
https://jira.mongodb.org/browse/MONGOCRYPT-977

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