{"action":"Upgrade mongo-c-driver to 1.30.4-1+deb13u2 or later.","affected":[{"fixed":"1.30.4-1+deb13u2","introduced":"0"}],"component":"mongo-c-driver","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1.30.4-1+deb13u2"],"id":"tcs_01M5NTNSZQMKSDGX0XD1NB7Y7Y","modified_at":"2026-10-27T09:47:31.097105510Z","published_at":"2026-05-06T16:16:11.483Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-6691","https://security-tracker.debian.org/tracker/CVE-2026-6691"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-6691#Debian:13/mongo-c-driver","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-6691"}],"summary":"The MongoDB C Driver's Cyrus SASL integration performs unsafe string copying during username canonicalization, enabling a heap buffer overflow before any authentication or network traffic. This may be"}