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A party with no privileges who can place a very large value into data that an application encodes may, depending on how the native extension was built, cause a write outside the bounds of an allocated buffer inside the application's own process.","state":0,"publishedAt":"2026-09-24T18:18:13.077+00:00","modifiedAt":"2026-09-26T03:55:41.712+00:00","affected":[{"ecosystem":"Vendor product","name":"Python Driver","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"MongoDB\",\n                    \"product\": \"Python Driver\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"1.9.0\",\n                            \"lessThan\": \"4.18.2\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":7.5,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.4,"severity":"HIGH"}],"references":["https://github.com/mongodb/mongo-python-driver/security/advisories/GHSA-v4x9-3549-crwv","https://github.com/mongodb/mongo-python-driver/releases/tag/4.18.2","https://github.com/mongodb/mongo-python-driver/blob/4.18.2/doc/changelog.rst"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-96749","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-96749","identifiers":["CVE-2026-96749"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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