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.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/RsyncProject/rsync/releases/tag/v3.5.0	Product Release Notes
https://github.com/RsyncProject/rsync/security/advisories/GHSA-4mfr-8jrv-49x4	Vendor Advisory
https://www.vulncheck.com/advisories/rsync-arbitrary-file-read-via-symlink-following	Release Notes Third Party Advisory
https://github.com/RsyncProject/rsync/security/advisories/GHSA-4mfr-8jrv-49x4	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:*

History

23 Oct 2026, 18:10

Type	Values Removed	Values Added
Summary		(es) rsync anterior a 3.5.0 contiene una vulnerabilidad de lectura arbitraria de archivos que permite a los atacantes leer archivos accesibles al proceso del demonio rsync explotando el seguimiento de enlaces simbólicos en el manejo de archivos de configuración de entrada, incluyendo --files-from, --password-file, y archivos de fusión de filtros. Los atacantes pueden colocar un enlace simbólico en una ruta predecible de --files-from o --password-file, o proporcionar una ruta --files-from que escapa de la raíz del módulo del demonio, para leer archivos arbitrarios accesibles al proceso rsync.

Information

Published : 2026-08-13 15:19

Updated : 2026-10-24 16:10

NVD link : CVE-2026-53802

Mitre link : CVE-2026-53802

CVE.ORG link : CVE-2026-53802

JSON object : View

Products Affected

samba

rsync

CWE

CWE-61

UNIX Symbolic Link (Symlink) Following

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