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rsync 3.2.0 through 3.2.3 (openssl mode) and rsync-ssl through 3.4.4 (stunnel mode) contain a TLS certificate validation vulnerability that allows on-path attackers to intercept encrypted sessions by presenting self-signed or otherwise invalid certificates. Attackers can exploit the failure to validate server TLS certificates against a trusted CA or verify certificate hostname matching to decrypt or tamper with rsync session content without detection by the client.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade rsync-rrsyncUpgrade rsync-daemonUpgrade rsync | Oct 11, 2026 | Sep 14, 2026 |
| Alpine Linux | — | Upgrade rsync | Sep 1, 2026 | Aug 13, 2026 |
| Amazon_linux_2023 | — | Upgrade rsync-debugsourceUpgrade rsyncUpgrade rsync-daemonUpgrade rsync-debuginfo | Sep 30, 2026 | Aug 13, 2026 |
| Debian | — | Upgrade rsync | Sep 30, 2026 | Aug 13, 2026 |
| Freebsd | — | Upgrade rsync | Aug 27, 2026 | Aug 25, 2026 |
| Oracle_linux | — | Upgrade rsync-rrsyncUpgrade rsyncUpgrade rsync-daemon | Oct 22, 2026 | Aug 13, 2026 |
| Redhat Openshift | — | Upgrade ose-rhel-coreos | Oct 1, 2026 | Aug 13, 2026 |
| Redhat_linux | — | Upgrade rsync-rrsyncUpgrade rsync-debuginfoUpgrade rsync-daemonUpgrade rsync-debugsourceUpgrade rsync | Aug 26, 2026 | Aug 13, 2026 |
| Rocky_linux | — | Upgrade rsync-debuginfoUpgrade rsyncUpgrade rsync-debugsource | Sep 17, 2026 | Sep 15, 2026 |
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