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. Attackers can inject shell metacharacters or newline characters into unsanitized user-supplied values such as hostnames and hostspecs to execute arbitrary commands under the privileges of the rsync process or the invoking user.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/RsyncProject/rsync/releases/tag/v3.5.0
https://github.com/RsyncProject/rsync/security/advisories/GHSA-5hcf-7xxm-rmqq
https://www.vulncheck.com/advisories/rsync-command-injection-via-multiple-code-paths

Configurations

No configuration.

History

23 Oct 2026, 18:10

Type	Values Removed	Values Added
Summary		(es) rsync anterior a la versión 3.5.0 contiene múltiples vulnerabilidades de inyección de comandos y argumentos que permiten a los atacantes ejecutar comandos arbitrarios al proporcionar entrada maliciosa a través de varias rutas de código, incluyendo la variable de entorno RSYNC_CONNECT_PROG, los ganchos del demonio, el wrapper rsync-ssl y la inyección de nueva línea en comandos de shell remoto. Los atacantes pueden inyectar metacaracteres de shell o caracteres de nueva línea en valores proporcionados por el usuario no saneados, como nombres de host y hostspecs, para ejecutar comandos arbitrarios bajo los privilegios del proceso rsync o del usuario invocador.

Information

Published : 2026-08-13 15:19

Updated : 2026-10-24 16:10

NVD link : CVE-2026-53790

Mitre link : CVE-2026-53790

CVE.ORG link : CVE-2026-53790

JSON object : View

Products Affected

No product.

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CWE-88

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

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