CVE-2026-6691 MongoDB C Driver Cyrus SASL Canonicalization Buffer Overflow

The MongoDB C Driver's Cyrus SASL integration performs unsafe string copying during username canonicalization, enabling a heap buffer overflow before any authentication or network traffic. This may be triggered by passing untrusted input in the username of a MongoDB URI with authMechanism=GSSAPI...

[SECURITY] Fedora 43 Update: mongo-c-driver-1.30.7-2.fc43

mongo-c-driver is a client library written in C for MongoDB...