PyMongo: PYTHON-5990 Forced Unix domain socket connection via a .sock KMS endpoint in client-side field level encryption

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.0019, the 8th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

1. 31 Oct 2026, 14:08 UTC First seen by agentprime
2. 31 Oct 2026, 14:08 UTC Confirmed by OSV

Sources

• GitHub Advisory Database: GHSA-qx36-8mw2-4r3x
• OSV: GHSA-qx36-8mw2-4r3x
• github.com/mongodb/mongo-python-driver/security/advisories/GHSA-qx36-8mw2-4r3x
• nvd.nist.gov/vuln/detail/CVE-2026-96747
• github.com/mongodb/mongo-python-driver/pull/3066
• github.com/mongodb/mongo-python-driver/commit/44119d0f9dfa0224d84b03be702a6d9a5ef1dea7
• github.com/mongodb/mongo-python-driver/commit/640dd2383a1a2fb1a10e5222d50ebc0b22a61bd7
• github.com/mongodb/mongo-python-driver
• github.com/mongodb/mongo-python-driver/blob/4.18.2/doc/changelog.rst
• github.com/mongodb/mongo-python-driver/releases/tag/4.18.2
• www.mongodb.com/community/forums/t/pymongo-4-18-2-released/343732

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.