{"id":"UBUNTU-CVE-2026-53797","details":"rsync before 3.5.0 contains a symlink race condition vulnerability in the sender's source tree traversal that allows an attacker who can manipulate a parent directory of the source tree to redirect file reads to unintended paths. Attackers can atomically replace a parent directory component with a symlink pointing outside the source root between path resolution and file open operations to disclose file contents outside the intended transfer root.","modified":"2026-08-19T13:32:28.705330477Z","published":"2026-08-13T15:19:00Z","upstream":["CVE-2026-53797"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53797"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-53797"},{"type":"REPORT","url":"https://download.samba.org/pub/rsync/NEWS#3.5.0"}],"affected":[{"package":{"name":"rsync","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/rsync?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.9-4ubuntu1","3.1.0-2","3.1.0-2ubuntu0.1","3.1.0-2ubuntu0.2","3.1.0-2ubuntu0.3","3.1.0-2ubuntu0.4","3.1.0-2ubuntu0.4+esm1","3.1.0-2ubuntu0.4+esm2","3.1.0-2ubuntu0.4+esm3","3.1.0-2ubuntu0.4+esm4"],"ecosystem_specific":{"binaries":[{"binary_version":"3.1.0-2ubuntu0.4+esm4","binary_name":"rsync"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53797.json"}},{"package":{"name":"rsync","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/rsync?arch=source&distro=esm-infra-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.1-3","3.1.1-3ubuntu1","3.1.1-3ubuntu1.1","3.1.1-3ubuntu1.2","3.1.1-3ubuntu1.3","3.1.1-3ubuntu1.3+esm1","3.1.1-3ubuntu1.3+esm2","3.1.1-3ubuntu1.3+esm3","3.1.1-3ubuntu1.3+esm4","3.1.1-3ubuntu1.3+esm5","3.1.1-3ubuntu1.3+esm6"],"ecosystem_specific":{"binaries":[{"binary_version":"3.1.1-3ubuntu1.3+esm6","binary_name":"rsync"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53797.json"}},{"package":{"name":"rsync","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/rsync?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.2-2","3.1.2-2.1","3.1.2-2.1ubuntu1","3.1.2-2.1ubuntu1.1","3.1.2-2.1ubuntu1.2","3.1.2-2.1ubuntu1.3","3.1.2-2.1ubuntu1.4","3.1.2-2.1ubuntu1.5","3.1.2-2.1ubuntu1.6","3.1.2-2.1ubuntu1.6+esm1","3.1.2-2.1ubuntu1.6+esm2","3.1.2-2.1ubuntu1.6+esm3","3.1.2-2.1ubuntu1.6+esm4"],"ecosystem_specific":{"binaries":[{"binary_name":"rsync","binary_version":"3.1.2-2.1ubuntu1.6+esm4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53797.json"}},{"package":{"name":"rsync","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/rsync?arch=source&distro=esm-infra%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.3-6","3.1.3-8","3.1.3-8ubuntu0.1","3.1.3-8ubuntu0.2","3.1.3-8ubuntu0.3","3.1.3-8ubuntu0.4","3.1.3-8ubuntu0.5","3.1.3-8ubuntu0.7","3.1.3-8ubuntu0.8","3.1.3-8ubuntu0.9","3.1.3-8ubuntu0.9+esm1","3.1.3-8ubuntu0.9+esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"rsync","binary_version":"3.1.3-8ubuntu0.9+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53797.json"}},{"package":{"name":"rsync","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/rsync?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.3-4ubuntu1","3.2.3-4ubuntu2","3.2.3-8ubuntu1","3.2.3-8ubuntu2","3.2.3-8ubuntu3","3.2.3-8ubuntu3.1","3.2.7-0ubuntu0.22.04.2","3.2.7-0ubuntu0.22.04.3","3.2.7-0ubuntu0.22.04.4","3.2.7-0ubuntu0.22.04.6","3.2.7-0ubuntu0.22.04.7"],"ecosystem_specific":{"binaries":[{"binary_version":"3.2.7-0ubuntu0.22.04.7","binary_name":"rsync"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53797.json"}},{"package":{"name":"rsync","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/rsync?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.7-1","3.2.7-1build1","3.2.7-1build2","3.2.7-1ubuntu1","3.2.7-1ubuntu1.1","3.2.7-1ubuntu1.2","3.2.7-1ubuntu1.4","3.2.7-1ubuntu1.5"],"ecosystem_specific":{"binaries":[{"binary_version":"3.2.7-1ubuntu1.5","binary_name":"rsync"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53797.json"}},{"package":{"name":"rsync","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/rsync?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.4.1+ds1-5ubuntu1","3.4.1+ds1-6","3.4.1+ds1-7","3.4.1+ds1-7ubuntu0.2","3.4.1+ds1-7ubuntu0.3"],"ecosystem_specific":{"binaries":[{"binary_version":"3.4.1+ds1-7ubuntu0.3","binary_name":"rsync"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53797.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}