{"schema":"threatline.record/2","record":{"id":"CVE-2026-101303","aliases":[],"summary":"IPv6 UDP sendto(2) bypasses jail loopback restriction","details":"The IPv6 UDP send path for unconnected sockets did not apply the jail policy of rewriting a loopback destination address to the jail's primary IPv6 address.\n\nA process in a classic (non-VNET) jail can send UDP datagrams to services listening on the host's IPv6 loopback address, bypassing jail network isolation.","categories":["Operating systems"],"product":"FreeBSD","vendor":"FreeBSD","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-101303","source_modified_at":"2026-10-16T18:36:07.211Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"FreeBSD","vendor":"FreeBSD","versions":[{"status":"affected","versionType":"release","version":"15.1-RELEASE","lessThan":"p4"},{"status":"affected","versionType":"release","version":"15.0-RELEASE","lessThan":"p14"},{"status":"affected","versionType":"release","version":"14.5-RELEASE","lessThan":"p1"},{"status":"affected","versionType":"release","version":"14.4-RELEASE","lessThan":"p10"}],"defaultStatus":"unknown"}],"fixed_versions":[],"cvss":7.5,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00363,"percentile":0.28956,"score_date":"2026-10-23"},"published_at":"2026-10-15T06:58:55.833Z","modified_at":"2026-10-16T18:36:07.211Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-101303","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-16T18:36:07.211Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-101303","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://security.freebsd.org/advisories/FreeBSD-SA-26:69.udp.asc","tags":["vendor-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-16T18:35:57.806852Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-16T18:36:07.211Z","content_hash":"207ff3275848d657320f01321b2fed156ed2f42a3df07ed379755d34c1987aed"}}