CVE-2026-81523 — Cross-tenant database retargeting via dot/NUL injection in namespace strings in libmongocrypt
A missing input-validation issue in MongoDB libmongocrypt's automatic-encryption context setup allows a caller-supplied database identifier to be accepted without sanitization. …
Published: 2026-08-27 · CVSS: 2.0 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7