{"id":"CVE-2026-101305","revision":"02eadca9acc945b4940803a861ee91d7","records":[{"revision":"02eadca9acc945b4940803a861ee91d7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-101305","aliases":[],"title":"Multiple jail filesystem root escapes","description":"renameat(2) did not enforce FD_RESOLVE_BENEATH on its directory arguments.  A jailed process could rename a directory relative to a restricted descriptor, then escape the jail root via fchdir(2).  This requires the directory to reside on a filesystem that is also reachable from the jail's root.\n\nA process in a jail that has received a directory file descriptor from another jail can use these techniques to escape the jail's filesystem root restriction.","state":0,"publishedAt":"2026-10-15T06:46:16.471+00:00","modifiedAt":"2026-10-16T18:30:32.048+00:00","affected":[{"ecosystem":"Vendor product","name":"FreeBSD","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unknown\",\n                    \"modules\": [\n                        \"jail\"\n                    ],\n                    \"product\": \"FreeBSD\",\n                    \"vendor\": \"FreeBSD\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"versionType\": \"release\",\n                            \"version\": \"15.1-RELEASE\",\n                            \"lessThan\": \"p4\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"versionType\": \"release\",\n                            \"version\": \"15.0-RELEASE\",\n                            \"lessThan\": \"p14\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"versionType\": \"release\",\n                            \"version\": \"14.5-RELEASE\",\n                            \"lessThan\": \"p1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"versionType\": \"release\",\n                            \"version\": \"14.4-RELEASE\",\n                            \"lessThan\": \"p10\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://security.freebsd.org/advisories/FreeBSD-SA-26:66.jail.asc"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-101305","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-101305","identifiers":["CVE-2026-101305"]},"retained":false,"historicalAffected":[]}],"coverage":[]}