CVE-2026-106428 Affecting mongo-c-driver package, versions <2.4.0-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-MONGOCDRIVER-20699076
- published10 Oct 2026
- disclosed8 Oct 2026
Introduced: 8 Oct 2026
NewCVE-2026-106428 (opens in a new tab)How to fix?
Upgrade Debian:unstable mongo-c-driver to version 2.4.0-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mongo-c-driver package and not the mongo-c-driver package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
An out-of-bounds read in SCRAM authentication response parsing in the MongoDB C Driver can read one byte beyond a fixed-size buffer when processing a malformed server-final message. A server or network intermediary able to provide this message before server-signature verification can cause the application using the driver to terminate. The extra byte is not returned through the protocol.