CVE-2026-53788

rsync before 3.5.0 contains a newline injection vulnerability in the name-converter uid/gid mapping interface that allows local attackers to forge protocol messages by creating user or group names containing newline characters. Attackers can inject malicious newline characters into names communicated over the pipe-based line-oriented protocol to cause the rsync daemon to process attacker-influenced data as legitimate protocol input, corrupting uid/gid mapping logic.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/RsyncProject/rsync/releases/tag/v3.5.0
https://github.com/RsyncProject/rsync/security/advisories/GHSA-p4c5-8c68-5fjq
https://www.vulncheck.com/advisories/rsync-newline-injection-via-name-converter-uid-gid-mapping

Configurations

No configuration.

History

23 Oct 2026, 18:10

Type	Values Removed	Values Added
Summary		(es) rsync anterior a 3.5.0 contiene una vulnerabilidad de inyección de nueva línea en la interfaz de mapeo uid/gid del conversor de nombres que permite a atacantes locales forjar mensajes de protocolo creando nombres de usuario o grupo que contengan caracteres de nueva línea. Los atacantes pueden inyectar caracteres de nueva línea maliciosos en nombres comunicados a través del protocolo orientado a líneas basado en tuberías para hacer que el demonio rsync procese datos influenciados por el atacante como entrada de protocolo legítima, corrompiendo la lógica de mapeo uid/gid.

Information

Published : 2026-08-13 15:19

Updated : 2026-10-24 16:10

NVD link : CVE-2026-53788

Mitre link : CVE-2026-53788

CVE.ORG link : CVE-2026-53788

JSON object : View

Products Affected

No product.

CWE

CWE-93

Improper Neutralization of CRLF Sequences ('CRLF Injection')

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