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CVE-2026-53790 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:8.1 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/RsyncProject/rsync/releases/tag/v3.5.0	[email protected]	Release Notes
https://github.com/RsyncProject/rsync/security/advisories/GHSA-5hcf-7xxm-rmqq	[email protected]	Vendor Advisory
https://www.vulncheck.com/advisories/rsync-command-injection-via-multiple-code-paths	[email protected]	Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-78	Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')	[email protected]
CWE-88	Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')	[email protected]

Affected Products

Product	Versions
samba rsync	< 3.5.0
CPE cpe:2.3:a:samba:rsync:::::::: Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Nov 6, 2026	Initial Analysis	[email protected]
Oct 24, 2026	CVE Translated	[email protected]
Oct 23, 2026	CVE Translated	[email protected]
Aug 13, 2026	CVE Modified	CISA-ADP
Aug 13, 2026	New CVE Received	[email protected]