{"id":"DEBIAN-CVE-2026-53786","details":"rsync before 3.5.0 contains a filter rule bypass vulnerability that allows authenticated clients to override module-level filter restrictions by supplying malicious --filter merge file directives. Attackers can inject client-side merge file directives during filter evaluation to introduce rules that supersede daemon module-level restrictions, gaining access to files the module filter was intended to exclude.","modified":"2026-09-01T16:06:50.599310333Z","published":"2026-08-13T15:19:42.700Z","upstream":["CVE-2026-53786"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-53786"}],"affected":[{"package":{"name":"rsync","ecosystem":"Debian:12","purl":"pkg:deb/debian/rsync?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.7-1","3.2.7-1+deb12u1","3.2.7-1+deb12u2","3.2.7-1+deb12u3","3.2.7-1+deb12u4","3.2.7-1+deb12u5","3.2.7-1+deb12u6","3.3.0+ds1-1","3.3.0+ds1-2","3.3.0+ds1-3","3.3.0+ds1-4","3.3.0-1","3.4.1+ds1-1","3.4.1+ds1-2","3.4.1+ds1-3","3.4.1+ds1-4","3.4.1+ds1-4~exp1","3.4.1+ds1-4~exp2","3.4.1+ds1-5","3.4.1+ds1-5~exp1","3.4.1+ds1-6","3.4.1+ds1-7","3.4.1+ds1-8~exp1","3.4.2+ds1-1","3.4.2+ds1-2","3.4.3+ds1-1","3.4.3+ds1-2","3.4.4+ds1-1","3.5.0+ds1-1","3.5.0+ds1-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-53786.json"}},{"package":{"name":"rsync","ecosystem":"Debian:13","purl":"pkg:deb/debian/rsync?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.4.1+ds1-5","3.4.1+ds1-5+deb13u1","3.4.1+ds1-5+deb13u2","3.4.1+ds1-5+deb13u3","3.4.1+ds1-5+deb13u4","3.4.1+ds1-6","3.4.1+ds1-7","3.4.1+ds1-8~exp1","3.4.2+ds1-1","3.4.2+ds1-2","3.4.3+ds1-1","3.4.3+ds1-2","3.4.4+ds1-1","3.5.0+ds1-1","3.5.0+ds1-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-53786.json"}},{"package":{"name":"rsync","ecosystem":"Debian:14","purl":"pkg:deb/debian/rsync?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.0+ds1-1"}]}],"versions":["3.4.1+ds1-5","3.4.1+ds1-6","3.4.1+ds1-7","3.4.1+ds1-8~exp1","3.4.2+ds1-1","3.4.2+ds1-2","3.4.3+ds1-1","3.4.3+ds1-2","3.4.4+ds1-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-53786.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}