CVE-2026-96746 — Heap buffer overflow via mid-scan command list growth in client topology monitoring

2026-09-30T21:34:58.773917+00:00

Affected: MongoDB C Driver

An out-of-bounds write in the connection-monitoring logic of the MongoDB C Driver may allow an unauthenticated party who controls name resolution and the responses of the hosts named in a client's connection string to write beyond the end of a heap buffer. This may cause the application using the driver to terminate unexpectedly.

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CVE-2026-96746 — Heap buffer overflow via mid-scan command list growth in client topology monitoring