{"action":"Upgrade mongo-c-driver to 2.5.2-1 or later.","affected":[{"fixed":"2.5.2-1","introduced":"0"}],"component":"mongo-c-driver","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["2.5.2-1"],"id":"tcs_01M5NVYZHPNDYWRKCX6C6BPWWA","modified_at":"2026-09-23T09:00:20.170007633Z","published_at":"2026-09-03T16:18:25.270Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-84964","https://security-tracker.debian.org/tracker/CVE-2026-84964"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-84964#Debian:14/mongo-c-driver","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-84964"}],"summary":"A double free in the OpenSSL-based TLS certificate revocation checking path of the MongoDB C Driver can be reached by a TLS endpoint that the client already trusts. During the handshake, specially for"}