{"id":"USN-8283-1","summary":"rsync vulnerabilities","details":"Calum Hutton discovered that rsync contained a heap-based out-of-bounds\nread when handling file transfers. A remote attacker with read access\nto an rsync server could possibly use this issue to cause a denial of\nservice. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS,\nand Ubuntu 25.10. (CVE-2025-10158)\n\nBatuhan Sancak, Damien Neil, and Michael Stapelberg discovered that\nrsync daemons configured without chroot protection were exposed to a\nrace condition on parent path components. A local attacker with write\naccess to a module could possibly use this issue to overwrite files,\nobtain sensitive information, or escalate privileges.\n(CVE-2026-29518)\n\nIt was discovered that rsync did not properly validate a length value\nwhile sorting extended attributes. An attacker could possibly use this\nissue to cause a denial of service. (CVE-2026-41035)\n\nIt was discovered that rsync performed reverse-DNS lookups after\nchrooting in some daemon configurations. A remote attacker could\npossibly use this issue to bypass hostname-based access controls and\naccess network services. (CVE-2026-43617)\n\nOmar Elsayed discovered that rsync did not properly check for integer\noverflows while decoding compressed tokens. A remote attacker could\npossibly use this issue to obtain sensitive information.\n(CVE-2026-43618)\n\nAndrew Tridgell discovered that rsync did not fully fix a symlink race\ncondition in path-based system calls for daemons configured without\nchroot protection. A local attacker could possibly use this issue to\noverwrite files, obtain sensitive information, or escalate privileges.\n(CVE-2026-43619)\n\nPratham Gupta discovered that rsync did not properly validate an index\nwhile processing file lists. A remote attacker could possibly use this\nissue to cause rsync to crash, resulting in a denial of service.\n(CVE-2026-43620)\n\nMichal Ruprich discovered that rsync contained an off-by-one error\nwhile handling HTTP proxy responses. An attacker able to intercept network\ncommunications or a malicious proxy server could possibly use this issue to\ncause a denial of service. (CVE-2026-45232)","modified":"2026-05-25T09:30:32.349133494Z","published":"2026-05-20T12:41:44Z","related":["UBUNTU-CVE-2025-10158","UBUNTU-CVE-2026-29518","UBUNTU-CVE-2026-41035","UBUNTU-CVE-2026-43617","UBUNTU-CVE-2026-43618","UBUNTU-CVE-2026-43619","UBUNTU-CVE-2026-43620","UBUNTU-CVE-2026-45232"],"upstream":["UBUNTU-CVE-2025-10158","UBUNTU-CVE-2026-29518","UBUNTU-CVE-2026-41035","UBUNTU-CVE-2026-43617","UBUNTU-CVE-2026-43618","UBUNTU-CVE-2026-43619","UBUNTU-CVE-2026-43620","UBUNTU-CVE-2026-45232"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8283-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-10158"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-29518"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-41035"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-43617"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-43618"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-43619"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-43620"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-45232"}],"affected":[{"package":{"name":"rsync","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/rsync?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.7-0ubuntu0.22.04.6"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"3.2.7-0ubuntu0.22.04.6","binary_name":"rsync"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8283-1.json","cves_map":{"cves":[{"id":"CVE-2025-10158","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2026-29518","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"high"}]},{"id":"CVE-2026-41035","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2026-43617","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-43618","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"high"}]},{"id":"CVE-2026-43619","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-43620","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-45232","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:22.04:LTS"}}},{"package":{"name":"rsync","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/rsync?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.7-1ubuntu1.4"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"3.2.7-1ubuntu1.4","binary_name":"rsync"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8283-1.json","cves_map":{"cves":[{"id":"CVE-2025-10158","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2026-29518","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"high"}]},{"id":"CVE-2026-41035","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2026-43617","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-43618","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"high"}]},{"id":"CVE-2026-43619","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-43620","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-45232","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:24.04:LTS"}}},{"package":{"name":"rsync","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/rsync?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.1+ds1-5ubuntu1.2"}]}],"versions":["3.4.1+ds1-3","3.4.1+ds1-4","3.4.1+ds1-5","3.4.1+ds1-5ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.4.1+ds1-5ubuntu1.2","binary_name":"rsync"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8283-1.json","cves_map":{"cves":[{"id":"CVE-2025-10158","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2026-29518","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"high"}]},{"id":"CVE-2026-41035","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2026-43617","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-43618","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"high"}]},{"id":"CVE-2026-43619","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-43620","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-45232","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:25.10"}}},{"package":{"name":"rsync","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/rsync?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.1+ds1-7ubuntu0.2"}]}],"versions":["3.4.1+ds1-5ubuntu1","3.4.1+ds1-6","3.4.1+ds1-7"],"ecosystem_specific":{"binaries":[{"binary_version":"3.4.1+ds1-7ubuntu0.2","binary_name":"rsync"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8283-1.json","cves_map":{"cves":[{"id":"CVE-2026-29518","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"high"}]},{"id":"CVE-2026-41035","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2026-43617","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-43618","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"high"}]},{"id":"CVE-2026-43619","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-43620","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-45232","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:26.04:LTS"}}}],"schema_version":"1.7.5"}