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ALSA-2026:67462 — Important: rsync security, bug fix, and enhancement update

Affected: AlmaLinux:9: rsync, AlmaLinux:9: rsync-daemon, AlmaLinux:9: rsync-rrsync

The rsync utility enables the users to copy and synchronize files locally or across a network. Synchronization with rsync is fast because rsync only sends the differences in files over the network instead of sending whole files. The rsync utility is also used as a mirroring tool.

Security Fix(es):

* rsync: rsync 2.3.3 < 3.5.0 Path Traversal via --partial-dir/--backup-dir Symlink (CVE-2026-70460) * rsync: rsync: TLS Certificate Validation Bypass allows interception of encrypted sessions (CVE-2026-70454) * rsync: rsync: Arbitrary file deletion via malicious file list (CVE-2026-53789) * rsync: rsync < 3.5.0 Command Injection via Multiple Code Paths (CVE-2026-53790) * rsync: rsync: Memory corruption via crafted file entries (CVE-2026-70458) * rsync: rsync: Denial of Service via handshake stall (CVE-2026-70464) * rsync: rsync: Local Privilege Escalation via Symlink Following (CVE-2026-53803) * rsync: rsync: Unauthorized File Access via Symlink Module Root (CVE-2026-53784) * rsync: rsync: Authorization bypass via `auth users` directive parsing (CVE-2026-70463) * rsync: rsync 3.1.0 < 3.5.0 Access Control Bypass via DNS Resolution Failure (CVE-2026-70452) * rsync: rsync < 3.5.0 Daemon IP Spoofing via PROXY Protocol Header (CVE-2026-53791) * rsync: rsync: Arbitrary file write via --temp-dir or --link-dest options (CVE-2026-53795) * rsync: rsync: Heap Out-of-Bounds Write via crafted argument list (CVE-2026-70456) * rsync: rsync < 3.5.0 Path Confinemen…

bdu:2026-14819

BELL-CVE-2026-53783

Affected: Alpaquita:23: rsync, Alpaquita:25: rsync, Alpaquita:stream: rsync

fkie_cve-2026-53783

rsync before 3.5.0 contains a time-of-check to time-of-use (TOCTOU) race condition vulnerability in the rrsync restricted shell wrapper that allows authenticated clients to escape enforced directory restrictions by substituting a symlink for a path component after validation but before transfer processing. Attackers can additionally leverage unrestricted flags such as --copy-unsafe-links, -D, and --log-file through rrsync to read or write files outside the permitted directory subtree.

msrc_CVE-2026-53783 — rsync < 3.5.0 TOCTOU Race Condition Directory Escape via rrsync

msrc_CVE-2026-53783

OESA-2026-3949 — rsync security update

Affected: openEuler:24.03-LTS-SP1: rsync

Rsync is an open source utility that provides fast incremental file transfer. It uses the &quot;rsync algorithm&quot; which provides a very fast method for bringing remote files into sync. It does this by sending just the differences in the files across the link, without requiring that both sets of files are present at one of the ends of the link beforehand. Security Fix(es):

Rsync version 3.4.2 and prior contain symlink race condition vulnerabilities in path-based system calls including chmod, lchown, utimes, rename, unlink, mkdir, symlink, mknod, link, rmdir, and lstat that allow local attackers to redirect operations to files outside the exported rsync module. Attackers with local filesystem access can exploit the timing window between path resolution and syscall execution by swapping symlinks to apply sender-supplied permissions, ownership, timestamps, or filenames to arbitrary files outside the intended module boundary on rsync daemons configured with 'use chroot = no'.(CVE-2026-43619)

openSUSE-SU-2026:11869-1 — rsync-3.5.1-1.1 on GA media

rsync-3.5.1-1.1 on GA media

RLSA-2026:67462 — Important: rsync security, bug fix, and enhancement update

Affected: Rocky Linux:9: rsync

Security Fix(es):

* rsync: rsync 2.3.3 < 3.5.0 Path Traversal via --partial-dir/--backup-dir Symlink (CVE-2026-70460)

* rsync: rsync: TLS Certificate Validation Bypass allows interception of encrypted sessions (CVE-2026-70454)

* rsync: rsync: Arbitrary file deletion via malicious file list (CVE-2026-53789)

* rsync: rsync < 3.5.0 Command Injection via Multiple Code Paths (CVE-2026-53790)

* rsync: rsync: Memory corruption via crafted file entries (CVE-2026-70458)

* rsync: rsync: Denial of Service via handshake stall (CVE-2026-70464)

* rsync: rsync: Local Privilege Escalation via Symlink Following (CVE-2026-53803)

* rsync: rsync: Unauthorized File Access via Symlink Module Root (CVE-2026-53784)

* rsync: rsync: Authorization bypass via `auth users` directive parsing (CVE-2026-70463)

* rsync: rsync 3.1.0 < 3.5.0 Access Control Bypass via DNS Resolution Failure (CVE-2026-70452)

* rsync: rsync < 3.5.0 Daemon IP Spoofing via PROXY Protocol Header (CVE-2026-53791)

* rsync: rsync: Arbitrary file write via --temp-dir or --link-dest options (CVE-2026-53795)

* rsync: rsync: Heap Out-of-Bounds Write via crafted argument list (CVE-2026-70456)

* rsync: rsync < 3.5.0 Path Confinement Bypass via /./ Bo…

SUSE-SU-2026:23253-1 — Security update for rsync

Security update for rsync

UBUNTU-CVE-2026-53783

Affected: Ubuntu:Pro:14.04:LTS: rsync, Ubuntu:Pro:16.04:LTS: rsync, Ubuntu:Pro:18.04:LTS: rsync, Ubuntu:Pro:20.04:LTS: rsync, Ubuntu:22.04:LTS: rsync, Ubuntu:24.04:LTS: rsync, Ubuntu:26.04:LTS: rsync