Samba Rsync vulnerabilities

CVE-2026-41035 [HIGH] CWE-130 CVE-2026-41035: In rsync 3.0.1 through 3.4.1, receive_xattr relies on an untrusted length value during a qsort call, In rsync 3.0.1 through 3.4.1, receive_xattr relies on an untrusted length value during a qsort call, leading to a receiver use-after-free. The victim must run rsync with -X (aka --xattrs). On Linux, many (but not all) common configurations are vulnerable. Non-Linux platforms are more widely vulnerable.

CVE-2025-10158 [MEDIUM] CVE-2025-10158: A malicious client acting as the receiver of an rsync file transfer can trigger an out of bounds read of a heap based buffer, via a negative array ind A malicious client acting as the receiver of an rsync file transfer can trigger an out of bounds read of a heap based buffer, via a negative array index. The malicious rsync client requires at least read access to the remote rsync module in order to trigger the issue.

CVE-2024-12084 [CRITICAL] CWE-122 CVE-2024-12084: A heap-based buffer overflow flaw was found in the rsync daemon. This issue is due to improper handl A heap-based buffer overflow flaw was found in the rsync daemon. This issue is due to improper handling of attacker-controlled checksum lengths (s2length) in the code. When MAX_DIGEST_LEN exceeds the fixed SUM_LENGTH (16 bytes), an attacker can write out of bounds in the sum2 buffer.

CVE-2024-12088 [HIGH] CWE-22 CVE-2024-12088: A flaw was found in rsync. When using the `--safe-links` option, the rsync client fails to properly A flaw was found in rsync. When using the `--safe-links` option, the rsync client fails to properly verify if a symbolic link destination sent from the server contains another symbolic link within it. This results in a path traversal vulnerability, which may lead to arbitrary file write outside the desired directory.

CVE-2024-12087 [HIGH] CWE-22 CVE-2024-12087: A path traversal vulnerability exists in rsync. It stems from behavior enabled by the `--inc-recursi A path traversal vulnerability exists in rsync. It stems from behavior enabled by the `--inc-recursive` option, a default-enabled option for many client options and can be enabled by the server even if not explicitly enabled by the client. When using the `--inc-recursive` option, a lack of proper symlink verification coupled with deduplication checks o

CVE-2024-12085 [HIGH] CWE-908 CVE-2024-12085: A flaw was found in rsync which could be triggered when rsync compares file checksums. This flaw all A flaw was found in rsync which could be triggered when rsync compares file checksums. This flaw allows an attacker to manipulate the checksum length (s2length) to cause a comparison between a checksum and uninitialized memory and leak one byte of uninitialized stack data at a time.

CVE-2024-12086 [MEDIUM] CWE-390 CVE-2024-12086: A flaw was found in rsync. It could allow a server to enumerate the contents of an arbitrary file fr A flaw was found in rsync. It could allow a server to enumerate the contents of an arbitrary file from the client's machine. This issue occurs when files are being copied from a client to a server. During this process, the rsync server will send checksums of local data to the client to compare with in order to determine what data needs to be sent to

CVE-2024-12747 [MEDIUM] CVE-2024-12747: A flaw was found in rsync A flaw was found in rsync. This vulnerability arises from a race condition during rsync's handling of symbolic links. Rsync's default behavior when encountering symbolic links is to skip them. If an attacker replaced a regular file with a symbolic link at the right time, it was possible to bypass the default behavior and traverse symbolic links. Depending on the privileges of the rsync process, an attacker could leak sensitive inf

CVE-2022-29154 [HIGH] CWE-20 CVE-2022-29154: An issue was discovered in rsync before 3.2.5 that allows malicious remote servers to write arbitrar An issue was discovered in rsync before 3.2.5 that allows malicious remote servers to write arbitrary files inside the directories of connecting peers. The server chooses which files/directories are sent to the client. However, the rsync client performs insufficient validation of file names. A malicious rsync server (or Man-in-The-Middle attacker) can

CVE-2020-14387 [HIGH] CWE-297 CVE-2020-14387: A flaw was found in rsync in versions since 3.2.0pre1. Rsync improperly validates certificate with h A flaw was found in rsync in versions since 3.2.0pre1. Rsync improperly validates certificate with host mismatch vulnerability. A remote, unauthenticated attacker could exploit the flaw by performing a man-in-the-middle attack using a valid certificate for another hostname which could compromise confidentiality and integrity of data transmitted using

CVE-2016-9840 [HIGH] rsync vulnerabilities rsync vulnerabilities It was discovered that rsync incorrectly handled pointer arithmetic in zlib. An attacker could use this issue to cause rsync to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-9840, CVE-2016-9841) It was discovered that rsync incorrectly handled vectors involving left shifts of negative integers in zlib. An attacker could use this issue to cause rsync to crash, resulting in a denial of servi

CVE-2018-5764 [HIGH] CVE-2018-5764: The parse_arguments function in options.c in rsyncd in rsync before 3.1.3 does not prevent multiple The parse_arguments function in options.c in rsyncd in rsync before 3.1.3 does not prevent multiple --protect-args uses, which allows remote attackers to bypass an argument-sanitization protection mechanism.

CVE-2017-17434 [CRITICAL] CVE-2017-17434: The daemon in rsync 3.1.2, and 3.1.3-development before 2017-12-03, does not check for fnamecmp file The daemon in rsync 3.1.2, and 3.1.3-development before 2017-12-03, does not check for fnamecmp filenames in the daemon_filter_list data structure (in the recv_files function in receiver.c) and also does not apply the sanitize_paths protection mechanism to pathnames found in "xname follows" strings (in the read_ndx_and_attrs function in rsync.c), which al

CVE-2017-17433 [LOW] CWE-862 CVE-2017-17433: The recv_files function in receiver.c in the daemon in rsync 3.1.2, and 3.1.3-development before 201 The recv_files function in receiver.c in the daemon in rsync 3.1.2, and 3.1.3-development before 2017-12-03, proceeds with certain file metadata updates before checking for a filename in the daemon_filter_list data structure, which allows remote attackers to bypass intended access restrictions.

CVE-2017-16548 [CRITICAL] CWE-125 CVE-2017-16548: The receive_xattr function in xattrs.c in rsync 3.1.2 and 3.1.3-development does not check for a tra The receive_xattr function in xattrs.c in rsync 3.1.2 and 3.1.3-development does not check for a trailing '\0' character in an xattr name, which allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact by sending crafted data to the daemon.

CVE-2017-15994 [CRITICAL] CWE-354 CVE-2017-15994: rsync 3.1.3-development before 2017-10-24 mishandles archaic checksums, which makes it easier for re rsync 3.1.3-development before 2017-10-24 mishandles archaic checksums, which makes it easier for remote attackers to bypass intended access restrictions. NOTE: the rsync development branch has significant use beyond the rsync developers, e.g., the code has been copied for use in various GitHub projects.

CVE-2016-9841 [CRITICAL] CVE-2016-9841: inffast inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.

CVE-2016-9843 [CRITICAL] CVE-2016-9843: The crc32_big function in crc32 The crc32_big function in crc32.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving big-endian CRC calculation.

CVE-2016-9842 [HIGH] CVE-2016-9842: The inflateMark function in inflate The inflateMark function in inflate.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving left shifts of negative integers.

CVE-2014-9512 [MEDIUM] CWE-59 CVE-2014-9512: rsync 3.1.1 allows remote attackers to write to arbitrary files via a symlink attack on a file in th rsync 3.1.1 allows remote attackers to write to arbitrary files via a symlink attack on a file in the synchronization path.