The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - rsync 3.0.0 before 3.5.0 contains a null pointer dereference vulnerability in the daemon child process     that allows remote attackers to crash the daemon by sending a file list whose first entry is a dot entry     not typed as a directory. The daemon dereferences the first file list entry as a directory structure     pointer without verifying the entry type, resulting in an invalid or uninitialized pointer dereference     that terminates the client connection. (CVE-2026-70459)

Note that Nessus relies on the presence of the package as reported by the vendor.

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1788433791 advisory.

  - rsync before 3.5.0 contains an improper path handling vulnerability that allows a malicious sender to     expand the scope of --delete operations beyond the intended destination subtree by sending a crafted file     list that causes rsync to reclassify implied parent directory entries or treat synthetic paths as the     transfer root. Attackers can exploit multiple variants including implied parent reclassification,     synthetic root path construction, legacy protocol behavior below version 30, and non-directory root     handling to cause the receiver to delete files outside the authorized destination directory.
    (CVE-2026-53789)

  - rsync 3.2.3 before 3.5.0 contains an out-of-bounds write in parse_size_arg() where the return value of     snprintf() is used directly as an index into a .bss-segment array without bounds checking. When snprintf     truncates the formatted size string, the return value equals the number of characters that would have been     written including the truncated portion, and this value may exceed the array length. The subsequent     indexed write targets memory outside the intended array bounds, corrupting .bss memory. (CVE-2026-70457)

  - rsync 3.0.0 before 3.5.0 contains a null pointer dereference vulnerability in the daemon child process     that allows remote attackers to crash the daemon by sending a file list whose first entry is a dot entry     not typed as a directory. The daemon dereferences the first file list entry as a directory structure     pointer without verifying the entry type, resulting in an invalid or uninitialized pointer dereference     that terminates the client connection. (CVE-2026-70459)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 13 host has a package installed that is affected by multiple vulnerabilities as referenced in the dsa-6527 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6527-1                   security@debian.org     https://www.debian.org/security/                     Salvatore Bonaccorso     September 28, 2026                    https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : rsync     CVE ID         : CVE-2026-53783 CVE-2026-53784 CVE-2026-53785 CVE-2026-53786                      CVE-2026-53788 CVE-2026-53789 CVE-2026-53790 CVE-2026-53791                      CVE-2026-53792 CVE-2026-53793 CVE-2026-53794 CVE-2026-53795                      CVE-2026-53796 CVE-2026-53797 CVE-2026-53798 CVE-2026-53799                      CVE-2026-53800 CVE-2026-53801 CVE-2026-53802 CVE-2026-53803                      CVE-2026-70452 CVE-2026-70453 CVE-2026-70454 CVE-2026-70455                      CVE-2026-70456 CVE-2026-70457 CVE-2026-70458 CVE-2026-70459                      CVE-2026-70460 CVE-2026-70461 CVE-2026-70462 CVE-2026-70463                      CVE-2026-70464

    Several vulnerabilities were discovered in rsync, a fast, versatile,     remote (and local) file-copying tool, which could result in local     privilege escalation, bypass of intended access restrictions,     information disclosure, denial of service or the execution of arbitrary     code.

    Details can be found at     https://download.samba.org/pub/rsync/NEWS#3.5.0

    For the stable distribution (trixie), these problems have been fixed in     version 3.5.0+ds1-0+deb13u1.

    We recommend that you upgrade your rsync packages.

    For the detailed security status of rsync please refer to its security     tracker page at:
    https://security-tracker.debian.org/tracker/rsync

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-d6763b4c84 advisory.

    New version 3.5.0. Includes fixes for following CVEs:
    CVE-2026-53783, CVE-2026-53784, CVE-2026-53785, CVE-2026-53786, CVE-2026-53788, CVE-2026-53789,     CVE-2026-53790, CVE-2026-53791, CVE-2026-53792, CVE-2026-53793, CVE-2026-53794, CVE-2026-53795,     CVE-2026-53796, CVE-2026-53797, CVE-2026-53798, CVE-2026-53799, CVE-2026-53800, CVE-2026-53801,     CVE-2026-53802, CVE-2026-53803, CVE-2026-70452, CVE-2026-70453, CVE-2026-70454, CVE-2026-70455,     CVE-2026-70456, CVE-2026-70457, CVE-2026-70458, CVE-2026-70459, CVE-2026-70460, CVE-2026-70461,     CVE-2026-70462, CVE-2026-70463, CVE-2026-70464





Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The CentOS Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the TuxCare CENTOS7:CLSA-2026:1788953354 advisory.

  - rsync before 3.5.0 contains a path traversal vulnerability that allows remote clients to access files     outside the intended module root when use chroot is disabled and the module root path or a component of it     is a symlink. The daemon calls chdir() to the module root at session initialization without resolving     symlinks via realpath() or equivalent, causing subsequent relative-path operations to reference files     relative to the symlink target rather than the intended module root, enabling unauthorized file access.
    (CVE-2026-53784)

  - rsync before 3.5.0 contains a filter rule bypass vulnerability that allows authenticated clients to     override module-level filter restrictions by supplying malicious --filter merge file directives. Attackers     can inject client-side merge file directives during filter evaluation to introduce rules that supersede     daemon module-level restrictions, gaining access to files the module filter was intended to exclude.
    (CVE-2026-53786)

  - rsync before 3.5.0 contains an improper path handling vulnerability that allows a malicious sender to     expand the scope of --delete operations beyond the intended destination subtree by sending a crafted file     list that causes rsync to reclassify implied parent directory entries or treat synthetic paths as the     transfer root. Attackers can exploit multiple variants including implied parent reclassification,     synthetic root path construction, legacy protocol behavior below version 30, and non-directory root     handling to cause the receiver to delete files outside the authorized destination directory.
    (CVE-2026-53789)

  - rsync before 3.5.0 contains a symlink following vulnerability that allows local attackers to overwrite     arbitrary files by placing a symlink at a predictable output path such as --log-file, --write-batch, or     daemon-mode log and statistics paths. Attackers can exploit rsync's failure to reject symlinks during     ancillary file writes to redirect output to arbitrary filesystem locations, achieving local privilege     escalation on installations where rsync runs with elevated privileges such as setuid or privileged daemon     configurations. (CVE-2026-53803)

  - rsync 3.0.0 before 3.5.0 contains a null pointer dereference vulnerability in the daemon child process     that allows remote attackers to crash the daemon by sending a file list whose first entry is a dot entry     not typed as a directory. The daemon dereferences the first file list entry as a directory structure     pointer without verifying the entry type, resulting in an invalid or uninitialized pointer dereference     that terminates the client connection. (CVE-2026-70459)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the fee67ad5-a05e-11f1-ad2b-40b034429ecf advisory.

    rsync project reports:
    This release fixes 33 security issues found during a focused audit of rsync's path           handling and daemon protocol, a companion daemon-protocol fuzzing pass, and reports               from external researchers -- plus several robustness hardenings. CVE IDs were assigned               by VulnCheck (CNA); the precise introduced in version ranges accompany each advisory,               and many are much narrower than everything before 3.5.0. Every fix ships with a               regression test in the test suite that fails on the unfixed tree.
    support/rrsync (the restricted SSH wrapper):
    Daemon protocol / identity:
    Injection and memory safety:
    Peer-triggerable memory corruption in the daemon protocol:
    Daemon availability and access control:
    Client-side:

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An update of the rsync package has been released.

The remote SUSE Linux SLES15 / SLES_SAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3634-1 advisory.

    - CVE-2026-53783: rrsync restricted-directory escape (validation-vs-exec race + unsafe option allowlist)     (bsc#1269041).
    - CVE-2026-53784: Daemon module-root chdir escape under 'use chroot = no' (bsc#1269042).
    - CVE-2026-53785: --relative implied-parent creation escapes the destination tree (bsc#1269043).
    - CVE-2026-53786: Daemon --filter merge file bypasses the module filter list (bsc#1269044).
    - CVE-2026-53788: Daemon name-converter accepts newline-bearing names into its line protocol     (bsc#1269046).
    - CVE-2026-53789: Malicious sender expands --delete scope by reclassifying an implied parent     (bsc#1269047).
    - CVE-2026-53790: Command / argument injection via unquoted peer- or host-controlled values (bsc#1269048).
    - CVE-2026-53791: PROXY-protocol mode lets a direct client spoof the daemon's source address     (bsc#1269049).
    - CVE-2026-53792: Receiver-supplied zero checksum block length drives sender matching negative     (bsc#1269050).
    - CVE-2026-53793: Chroot '/./' inner-module escape via a parent-component symlink (bsc#1269051).
    - CVE-2026-53794: Remote peer disables the per-allocation sanity cap via --max-alloc=0 (bsc#1269052).
    - CVE-2026-53795: Receiver write escape via an absolute --temp-dir / --link-dest disabling rename/link     confinement       (bsc#1269053).
    - CVE-2026-53796: Non-daemon receiver destination-chdir symlink race (TOCTOU) (bsc#1269054).
    - CVE-2026-53797: Sender source-tree parent-component symlink race -> out-of-tree disclosure     (bsc#1269055).
    - CVE-2026-53798: Daemon name-converter empty response maps an unknown name to uid/gid 0 (bsc#1269045).
    - CVE-2026-53799: Receiver ACL/xattr application follows a symlink-race -> arbitrary ACL set (local     privilege       escalation) (bsc#1269056).
    - CVE-2026-53800: Sender --remove-source-files unlink follows a parent-component symlink race -> arbitrary     file deletion       outside the source tree (bsc#1269057).
    - CVE-2026-53801: Sender/daemon directory-scan enumeration escapes the transfer root / module -> out-of-     tree disclosure       (bsc#1269058).
    - CVE-2026-53802: Arbitrary file read / transfer-shaping via symlinked operator-supplied input files     (bsc#1269039).
    - CVE-2026-53803: Arbitrary file write / privilege escalation via symlinked operator-supplied output paths       (bsc#1269040).
    - CVE-2026-70452: `hosts deny` fails OPEN when a configured hostname cannot be resolved, admitting the     host it was meant       to block (bsc#1273441).
    - CVE-2026-70453: Quadratic CPU exhaustion in hash_search() from a crafted equal-weak-checksum chain     (bsc#1273440).
    - CVE-2026-70454: rsync-ssl establishes an unauthenticated TLS connection (bsc#1273439).
    - CVE-2026-70455: Peer-controlled Zstandard worker exhaustion on an rsync daemon (bsc#1273438).
    - CVE-2026-70456: Remote out-of-bounds heap write in read_args() when the argument count lands exactly on     maxargs       (bsc#1273437).
    - CVE-2026-70457: Attacker-chosen-offset write in parse_size_arg() error formatting (bsc#1273436).
    - CVE-2026-70458: Out-of-bounds write from a FLAG_HLINKED file entry accepted without -H (bsc#1273435).
    - CVE-2026-70459: Per-connection daemon child crash from a crafted first incremental file list with a non-     directory       transfer root (bsc#1273434).
    - CVE-2026-70460: Daemon module-root escape through a peer-supplied --partial-dir / --backup-dir resolving     via an in-       module symlink (bsc#1273433).
    - CVE-2026-70461: Peer-driven one-byte heap out-of-bounds write in add_implied_include() (bsc#1273432).
    - CVE-2026-70462: Peer-supplied MSG_IO_TIMEOUT defeats the client's own I/O timeout (bsc#1273431).
    - CVE-2026-70463: 'auth users' ignores documented comma-only parsing, silently skipping a deny/read-only     rule       (bsc#1273430).
    - CVE-2026-70464: Unauthenticated pre-transfer handshake DoS locks out an rsync daemon module     (bsc#1273429).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21650-1 advisory.

    - CVE-2026-53783: rrsync restricted-directory escape (validation-vs-exec race + unsafe option allowlist)     (bsc#1269041).
    - CVE-2026-53784: Daemon module-root chdir escape under use chroot = no (bsc#1269042).
    - CVE-2026-53785: --relative implied-parent creation escapes the destination tree (bsc#1269043).
    - CVE-2026-53786: Daemon --filter merge file bypasses the module filter list (bsc#1269044).
    - CVE-2026-53788: Daemon name-converter accepts newline-bearing names into its line protocol     (bsc#1269046).
    - CVE-2026-53789: Malicious sender expands --delete scope by reclassifying an implied parent     (bsc#1269047).
    - CVE-2026-53790: Command / argument injection via unquoted peer- or host-controlled values (bsc#1269048).
    - CVE-2026-53791: PROXY-protocol mode lets a direct client spoof the daemon's source address     (bsc#1269049).
    - CVE-2026-53792: Receiver-supplied zero checksum block length drives sender matching negative     (bsc#1269050).
    - CVE-2026-53793: Chroot /./ inner-module escape via a parent-component symlink (bsc#1269051).
    - CVE-2026-53794: Remote peer disables the per-allocation sanity cap via --max-alloc=0 (bsc#1269052).
    - CVE-2026-53795: Receiver write escape via an absolute --temp-dir / --link-dest disabling rename/link     confinement       (bsc#1269053).
    - CVE-2026-53796: Non-daemon receiver destination-chdir symlink race (bsc#1269054).
    - CVE-2026-53797: Sender source-tree parent-component symlink race -> out-of-tree disclosure     (bsc#1269055).
    - CVE-2026-53798: Daemon name-converter empty response maps an unknown name to uid/gid 0 (bsc#1269045).
    - CVE-2026-53799: Receiver ACL/xattr application follows a symlink-race -> arbitrary ACL set     (bsc#1269056).
    - CVE-2026-53800: Sender --remove-source-files unlink follows a parent-component symlink race -> arbitrary     file deletion       outside the source tree (bsc#1269057).
    - CVE-2026-53801: Sender/daemon directory-scan enumeration escapes the transfer root / module -> out-of-     tree disclosure       (bsc#1269058).
    - CVE-2026-53802: Arbitrary file read / transfer-shaping via symlinked operator-supplied input files     (bsc#1269039).
    - CVE-2026-53803: Arbitrary file write / privilege escalation via symlinked operator-supplied output paths       (bsc#1269040).
    - CVE-2026-70452: `hosts deny` fails OPEN when a configured hostname cannot be resolved, admitting the     host it was meant       to block (bsc#1273441).
    - CVE-2026-70453: Quadratic CPU exhaustion in hash_search() from a crafted equal-weak-checksum chain     (bsc#1273440).
    - CVE-2026-70454: rsync-ssl establishes an unauthenticated TLS connection (bsc#1273439).
    - CVE-2026-70455: Peer-controlled Zstandard worker exhaustion on an rsync daemon (bsc#1273438).
    - CVE-2026-70456: Remote out-of-bounds heap write in read_args() when the argument count lands exactly on     maxargs       (bsc#1273437).
    - CVE-2026-70457: Attacker-chosen-offset write in parse_size_arg() error formatting (bsc#1273436).
    - CVE-2026-70458: Out-of-bounds write from a FLAG_HLINKED file entry accepted without -H (bsc#1273435).
    - CVE-2026-70459: Per-connection daemon child crash from a crafted first incremental file list with a non-     directory       transfer root (bsc#1273434).
    - CVE-2026-70460: Daemon module-root escape through a peer-supplied --partial-dir / --backup-dir resolving     via an in-       module symlink (bsc#1273433).
    - CVE-2026-70461: Peer-driven one-byte heap out-of-bounds write in add_implied_include() (bsc#1273432).
    - CVE-2026-70462: Peer-supplied MSG_IO_TIMEOUT defeats the client's own I/O timeout (bsc#1273431).
    - CVE-2026-70463: auth users ignores documented comma-only parsing, silently skipping a deny/read-only     rule       (bsc#1273430).
    - CVE-2026-70464: Unauthenticated pre-transfer handshake DoS locks out an rsync daemon module     (bsc#1273429).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 12 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-4888 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4888-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                     Arnaud Rebillout     November 09, 2026                             https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : rsync     Version        : 3.5.0+ds1-0+deb12u1     CVE ID         : CVE-2026-53783 CVE-2026-53784 CVE-2026-53785 CVE-2026-53786                      CVE-2026-53788 CVE-2026-53789 CVE-2026-53790 CVE-2026-53791                      CVE-2026-53792 CVE-2026-53793 CVE-2026-53794 CVE-2026-53795                      CVE-2026-53796 CVE-2026-53797 CVE-2026-53798 CVE-2026-53799                      CVE-2026-53800 CVE-2026-53801 CVE-2026-53802 CVE-2026-53803                      CVE-2026-70452 CVE-2026-70453 CVE-2026-70454 CVE-2026-70455                      CVE-2026-70456 CVE-2026-70457 CVE-2026-70458 CVE-2026-70459                      CVE-2026-70460 CVE-2026-70461 CVE-2026-70462 CVE-2026-70463                      CVE-2026-70464 CVE-2026-119741     Debian Bug     : 1149604

    Several vulnerabilities were discovered in rsync, a fast, versatile,     remote (and local) file-copying tool, which could result in local     privilege escalation, bypass of intended access restrictions, information     disclosure, denial of service or the execution of arbitrary code.

    Details can be found at     https://download.samba.org/pub/rsync/NEWS#3.5.0

    The Debian LTS team decided to backport rsync 3.5.0, plus regressions     fixes from 3.5.1, rather than trying to backport all the patches one by     to one into rsync 3.2.7.

    The change is potentially disruptive, given that those security fixes     also come with some behavior changes. Make sure to read the NEWS entry     when the package is updated on your system, or refer to     https://lists.debian.org/debian-lts/2026/11/msg00035.html.

    For Debian 12 bookworm, these problems have been fixed in version     3.5.0+ds1-0+deb12u1.

    We recommend that you upgrade your rsync packages.

    For the detailed security status of rsync please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/rsync

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
335066	Linux Distros Unpatched Vulnerability : CVE-2026-70459	Nessus	Misc.	2026/8/13	2026/11/14	medium
352126	AlmaLinux 9.2 [TuxCare] Security Update: rsync / rsync-daemon Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1788433791)	Nessus	Alma Linux Local Security Checks	2026/9/30	2026/9/30	high
350989	Debian dsa-6527 : rsync - security update	Nessus	Debian Local Security Checks	2026/9/29	2026/9/29	critical
341040	Fedora 43 : rsync (2026-d6763b4c84)	Nessus	Fedora Local Security Checks	2026/8/27	2026/9/16	critical
352675	CentOS Linux 7 [TuxCare] Security Update: rsync Multiple Vulnerabilities (CENTOS7:CLSA-2026:1788953354)	Nessus	CentOS Local Security Checks	2026/9/30	2026/9/30	high
341069	FreeBSD : net/rsync -- multiple vulnerabilities (fee67ad5-a05e-11f1-ad2b-40b034429ecf)	Nessus	FreeBSD Local Security Checks	2026/8/27	2026/9/16	critical
374974	Photon OS 5.0: Rsync PHSA-2026-5.0-91-0991	Nessus	PhotonOS Local Security Checks	2026/11/2	2026/11/2	critical
337988	SUSE SLES15 Security Update : rsync (SUSE-SU-2026:3634-1)	Nessus	SuSE Local Security Checks	2026/8/19	2026/9/1	critical
341163	openSUSE 16 Security Update : rsync (openSUSE-SU-2026:21650-1)	Nessus	SuSE Local Security Checks	2026/8/28	2026/9/16	critical
351050	Amazon Linux 2023 : rsync, rsync-daemon (ALAS2023-2026-3131)	Nessus	Amazon Linux Local Security Checks	2026/9/29	2026/9/29	critical
377615	Debian dla-4888 : rsync - security update	Nessus	Debian Local Security Checks	2026/11/9	2026/11/9	critical

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