CVE-2026-81523Cross-tenant database retargeting via dot/NUL injection in namespace strings in libmongocrypt

Descripción

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.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• https://jira.mongodb.org/browse/MONGOCRYPT-977 Vendor AdvisoryIssue TrackingPatch
• https://github.com/mongodb/libmongocrypt/releases/tag/1.20.3 Product