Double Free Affecting mongo-c-driver package, versions [1.30.3,1.30.11)[2.2.0,2.5.4)
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-CONAN-MONGOCDRIVER-20074892
- published24 Sept 2026
- disclosed3 Sept 2026
- creditUnknown
Introduced: 3 Sep 2026
NewCVE-2026-84964 (opens in a new tab)How to fix?
Upgrade mongo-c-driver to version 1.30.11, 2.5.4 or higher.
Overview
Affected versions of this package are vulnerable to Double Free in the OCSP certificate revocation checking process during a TLS handshake with a trusted endpoint. An attacker can cause the client application to terminate unexpectedly by sending specially crafted certificate data that triggers a double free of the same heap object.