rsync: rsync: Memory corruption via crafted file entries

A flaw was found in rsync. This out-of-bounds write vulnerability allows attackers to corrupt memory by triggering specific processing on specially crafted file entries when hard-link preservation is not active. This can lead to denial of service or other unpredictable system behavior...

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 2.3.3 < 3.5.0 Path Traversal via --partial-dir/--backup-dir Symlink

A path traversal and symlink vulnerability in rsync allows a malicious sender with write access to write files outside the intended directory. By exploiting symbolic links in conjunction with the --partial-dir or --backup-dir options, an attacker can bypass path restrictions to modify arbitrary...

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

An update for rsync is now available for Red Hat Enterprise Linux 10. 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 th...

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: Denial of Service via Zstandard compression thread exhaustion

A denial-of-service flaw in rsync allows remote attackers to exhaust system memory and CPU. By sending requests using the --zt Zstandard compression alias, an attacker can bypass security directives and spawn an excessive number of worker threads...

rsync: rsync: Unauthorized File Access via Symlink Module Root

A flaw was found in rsync. This path traversal vulnerability allows remote clients to access files outside the intended module root. This occurs when the use chroot option is disabled and the module root path, or a component of it, is a symbolic link. The rsync daemon fails to resolve symlinks...

rsync: rsync: Directory escape via TOCTOU race condition in rrsync

A time-of-check to time-of-use TOCTOU race condition flaw in the rrsync restricted shell wrapper allows authenticated remote attackers to escape directory restrictions. By replacing a validated path component with a symbolic link prior to file transfer execution, an attacker can bypass intended...

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...

Astra Linux – Vulnerability in rsync

In rsync versions 3.0.1 through 3.4.1, the receivexattr function relies on an untrusted length value during a qsort call, resulting in a use-after-free vulnerability. The vulnerability is exploitable when rsync is executed with the -X option also known as --xattrs. On Linux, many but not all comm...

Astra Linux – Vulnerability in rsync

A flaw was discovered in rsync. It allows a server to enumerate the contents of an arbitrary file from the client’s machine. This issue occurs when files are being copied from the client to the server. During this process, the rsync server sends checksums of local data to the client for compariso...

Astra Linux – Vulnerability in rsync

A flaw was discovered in rsync that can be triggered when rsync compares file checksums. This flaw allows an attacker to manipulate the checksum length s2length, causing a comparison between a checksum and uninitialized memory, and resulting in the leakage of one byte of uninitialized stack data ...

Astra Linux – Vulnerability in rsync

A flaw was discovered in rsync. This vulnerability stems from a race condition that occurs during rsync’s handling of symbolic links. The default behavior of rsync when encountering symbolic links is to skip them. If an attacker replaces a regular file with a symbolic link at the appropriate time...

ALSA-2026:67463 Important: rsync security, bug fix, and enhancement update

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 Fixes:...

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

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 Fixes:...

rsync: Fix of 5 CVEs

CVE-2026-53784: confine the daemon's absolute chdir target with a new ownership-walk resolver so a planted parent symlink cannot steer a "use chroot = no" module root outside the module - CVE-2026-53786: strip a real moduledir prefix before the daemon-filter check on a merge-file path -- leaving...

CVE-2026-53788

A newline injection vulnerability exists in rsync's uid/gid mapping process. An attacker can inject newline characters into user or group names, causing the rsync daemon to process attacker-controlled data as legitimate protocol input. This results in data corruption within the uid/gid mapping...

EulerOS 2.0 SP12 : rsync (EulerOS-SA-2026-3308)

According to the versions of the rsync packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Rsync version 3.4.2 and prior contain an authorization bypass vulnerability in the rsync daemon's hostname-based access control list enforcement wh...

EulerOS 2.0 SP12 : rsync (EulerOS-SA-2026-3383)

According to the versions of the rsync packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Rsync version 3.4.2 and prior contain an authorization bypass vulnerability in the rsync daemon's hostname-based access control list enforcement wh...