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CVE-2026-106433

Heap corruption via duplicate masterKey fields in MongoDB libmongocrypt PUBLISHED

Description (CNA)

Improper state management in MongoDB libmongocrypt can cause provider-specific data to be treated as an incompatible type when cleaning up a key document containing duplicate masterKey fields. An authenticated actor who can modify key vault documents, or a server that returns such a key document, can cause invalid memory access and invalid frees in the client process. This can terminate the application or corrupt process memory.

Affected (CNA)

Vendor / productVersions
MongoDB / libmongocryptaffected 1.1.0 before 1.20.5

CWE

CWE-843

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.