CLSA-2026-1789462227 rsync: Fix of 4 CVEs

CVE-2026-53784: resolve the daemon module-root chdir through a trusted-owner walk so a planted symlink on the module path or any parent component cannot steer the daemon outside the module under "use chroot = no" - CVE-2026-53795: confine each side of dorenameat/dolinkat independently; an...

RockyLinux 10 : rsync (RLSA-2026:67463)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:67463 advisory. 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...

AlmaLinux 9 : rsync (ALSA-2026:67462)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:67462 advisory. 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...

RockyLinux 9 : rsync (RLSA-2026:67462)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:67462 advisory. 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...

AlmaLinux 10 : rsync (ALSA-2026:67463)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:67463 advisory. 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...

Important: Red Hat Security Advisory: rsync security, bug fix, and enhancement update

An update for rsync is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

rsync: rsync: Arbitrary File Read via Symlink Following

A flaw was found in rsync. A local attacker with low privileges can exploit a symlink following vulnerability in the handling of input configuration files, such as those specified by --files-from or --password-file. This allows the attacker to read arbitrary files accessible to the rsync daemon...

rsync: rsync: Information disclosure and denial of service via crafted files-from entry

A flaw was found in rsync. Remote unauthenticated attackers can exploit a heap out-of-bounds write vulnerability by supplying a crafted files-from entry. This entry, containing both an interior and trailing backslash, causes the addimpliedinclude function to under-count the trailing backslash whe...

rsync: rsync: Denial of Service via handshake stall

A denial of service flaw was found in the rsync daemon. An unauthenticated remote attacker can stall the handshake process by opening multiple concurrent connections and trickling data or stalling prior to module selection. This bypasses standard timeouts and exhausts all available connection...

rsync: rsync: TLS Certificate Validation Bypass allows interception of encrypted sessions

A flaw was found in the rsync-ssl wrapper script's TLS certificate validation. An on-path attacker can present self-signed or invalid certificates to intercept, decrypt, or tamper with encrypted sessions. Because rsync fails to validate the certificate against a trusted CA or verify hostname...

rsync: rsync: Memory corruption via out-of-bounds write in size parsing

An out-of-bounds write vulnerability in rsync's parsesizearg function allows a remote attacker to cause memory corruption. The flaw is triggered when snprintf truncates a formatted size string, resulting in an incorrect memory array index. Exploitation can lead to a denial of service and...

rsync: rsync: Denial of Service via Algorithmic Complexity

A flaw was found in rsync. A remote attacker can exploit an algorithmic complexity vulnerability within the hashsearch function by sending a specially crafted file list. This can lead to the exhaustion of the receiver's CPU resources, causing a sustained denial of service DoS...

rsync: rsync 3.1.0 < 3.5.0 Access Control Bypass via DNS Resolution Failure

A flaw was found in rsync. This vulnerability allows a remote attacker to bypass hostname-based access control rules. By inducing DNS resolution failures, the rsync daemon incorrectly skips deny rules, granting unauthorized access to restricted module file trees...

rsync: rsync: Local Privilege Escalation via Symlink Following

A symlink-following vulnerability in rsync allows local attackers to redirect predictable output paths to arbitrary filesystem locations. When rsync runs with elevated privileges such as setuid or a privileged daemon, this enables arbitrary file overwrites and local privilege escalation...

rsync: rsync: Arbitrary file write via --temp-dir or --link-dest options

A flaw was found in rsync. A remote attacker can exploit this vulnerability by specifying an absolute path using the --temp-dir or --link-dest options. This bypasses the rename-confinement logic, allowing the attacker to write files to arbitrary locations outside the intended destination tree,...

rsync: rsync < 3.5.0 Path Confinement Bypass via /./ Boundary Marker in Chroot Mode

A flaw was found in rsync. This vulnerability allows remote clients to bypass path confinement, a security measure designed to restrict file access. By crafting specific paths that include a '/./' boundary marker within a chroot environment, an attacker can gain unauthorized read or write access ...

rsync: rsync < 3.5.0 Daemon IP Spoofing via PROXY Protocol Header

A flaw in rsync allows an unauthenticated remote attacker to bypass IP-based access controls by sending a crafted PROXY protocol header with a forged source IP address, granting unauthorized access to restricted resources...

rsync: rsync < 3.5.0 Command Injection via Multiple Code Paths

A command injection vulnerability in rsync allows remote attackers to execute arbitrary commands by supplying shell metacharacters or newlines in unsanitized inputs, such as hostnames or hostspecs. This impacts multiple vectors—including the RSYNCCONNECTPROG variable, daemon hooks, rsync-ssl, and...

rsync: rsync: Arbitrary file deletion via malicious file list

An improper path handling vulnerability in rsync allows a remote attacker to delete arbitrary files on the receiving system. By sending a specially crafted file list during synchronization, an attacker can expand the scope of --delete operations beyond the target directory, potentially causing a...

rsync: rsync: Authorization bypass via `auth users` directive parsing

An authorization bypass flaw was found in the rsync daemon. The auth users directive parser incorrectly handles group names containing spaces due to comma-only tokenization. This flaw causes deny rules to be silently discarded, allowing an authenticated user to bypass restrictions and gain...