rsync before 3.5.0 contains an arbitrary file read vulnerability that allows attackers to read files accessible to the rsync daemon process by exploiting symlink following in input configuration file handling including --files-from, --password-file, and filter merge files. Attackers can place a symlink at a predictable --files-from or --password-file path, or supply a --files-from path that escapes the daemon module root, to read arbitrary files accessible to the rsync process.

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0874 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2026-70458:
    rsync 3.0.0 before 3.5.0 contains an out-of-bounds write vulnerability that allows attackers to corrupt     memory by triggering HLINK_BUMP processing on file entries with the FLAG_HLINKED flag set while the hard-     link preservation option is inactive. Attackers can exploit the missing F_SUM field in the file_struct     layout to access memory past the end of the allocated structure, corrupting adjacent heap or stack data.

    CVE-2026-70454:
    rsync 3.2.0 through 3.2.3 (openssl mode) and rsync-ssl through 3.4.4 (stunnel mode) contain a TLS     certificate validation vulnerability that allows on-path attackers to intercept encrypted sessions by     presenting self-signed or otherwise invalid certificates.

    CVE-2026-53802:
    rsync before 3.5.0 contains an arbitrary file read vulnerability that allows attackers to read files     accessible to the rsync daemon process by exploiting symlink following in input configuration file     handling including --files-from, --password-file, and filter merge files. Attackers can place a symlink at     a predictable --files-from or --password-file path, or supply a --files-from path that escapes the daemon     module root, to read arbitrary files accessible to the rsync process.

    CVE-2026-53790:
    rsync before 3.5.0 contains multiple command and argument injection vulnerabilities that allow attackers     to execute arbitrary commands by supplying malicious input through several code paths, including the     RSYNC_CONNECT_PROG environment variable, daemon hooks, the rsync-ssl wrapper, and remote-shell command     newline injection.

    CVE-2026-53785:
    rsync before 3.5.0 contains a path traversal vulnerability that allows a malicious sender to write files     outside the intended destination directory tree by crafting relative paths with symlink components in
    --relative mode. The make_path() function follows symlinks pointing outside the destination tree while     creating intermediate directories without verifying that created paths remain within the destination     boundary, enabling arbitrary file writes on the receiver's filesystem.

Tenable has extracted the preceding description block directly from the Tencent Linux 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 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.

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 remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-bfae8723e2 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 remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3657-1 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 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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - rsync before 3.5.0 contains an arbitrary file read vulnerability that allows attackers to read files     accessible to the rsync daemon process by exploiting symlink following in input configuration file     handling including --files-from, --password-file, and filter merge files. Attackers can place a symlink at     a predictable --files-from or --password-file path, or supply a --files-from path that escapes the daemon     module root, to read arbitrary files accessible to the rsync process. (CVE-2026-53802)

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

ID	Name	Product	Family	Type	Severity
342053	TencentOS Server 4: rsync (TSSA-2026:0874)	Nessus	Tencent Local Security Checks	Local	critical
341163	openSUSE 16 Security Update : rsync (openSUSE-SU-2026:21650-1)	Nessus	SuSE Local Security Checks	Local	critical
341069	FreeBSD : net/rsync -- multiple vulnerabilities (fee67ad5-a05e-11f1-ad2b-40b034429ecf)	Nessus	FreeBSD Local Security Checks	Local	critical
341040	Fedora 43 : rsync (2026-d6763b4c84)	Nessus	Fedora Local Security Checks	Local	critical
338831	Fedora 44 : rsync (2026-bfae8723e2)	Nessus	Fedora Local Security Checks	Local	critical
338828	SUSE SLED15 / SLES15 Security Update : rsync (SUSE-SU-2026:3657-1)	Nessus	SuSE Local Security Checks	Local	critical
337988	SUSE SLES15 Security Update : rsync (SUSE-SU-2026:3634-1)	Nessus	SuSE Local Security Checks	Local	critical
335030	Linux Distros Unpatched Vulnerability : CVE-2026-53802	Nessus	Misc.	Local	high

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