Description
Rsync version 3.4.2 and prior contain symlink race condition vulnerabilities in path-based system calls including chmod, lchown, utimes, rename, unlink, mkdir, symlink, mknod, link, rmdir, and lstat that allow local attackers to redirect operations to files outside the exported rsync module. Attackers with local filesystem access can exploit the timing window between path resolution and syscall execution by swapping symlinks to apply sender-supplied permissions, ownership, timestamps, or filenames to arbitrary files outside the intended module boundary on rsync daemons configured with 'use chroot = no'.
Published: 2026-05-20
Score: 7.2 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4591-1 rsync security update
Debian DSA Debian DSA DSA-6282-1 rsync security update
Ubuntu USN Ubuntu USN USN-8283-1 rsync vulnerabilities
Ubuntu USN Ubuntu USN USN-8349-1 rsync vulnerabilities
History

Sat, 23 May 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Thu, 21 May 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Samba
Samba rsync
CPEs cpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:*
Vendors & Products Samba
Samba rsync

Wed, 20 May 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 20 May 2026 11:45:00 +0000

Type Values Removed Values Added
First Time appeared Rsync Project
Rsync Project rsync
Vendors & Products Rsync Project
Rsync Project rsync

Wed, 20 May 2026 01:30:00 +0000

Type Values Removed Values Added
Description Rsync version 3.4.2 and prior contain symlink race condition vulnerabilities in path-based system calls including chmod, lchown, utimes, rename, unlink, mkdir, symlink, mknod, link, rmdir, and lstat that allow local attackers to redirect operations to files outside the exported rsync module. Attackers with local filesystem access can exploit the timing window between path resolution and syscall execution by swapping symlinks to apply sender-supplied permissions, ownership, timestamps, or filenames to arbitrary files outside the intended module boundary on rsync daemons configured with 'use chroot = no'.
Title Rsync < 3.4.3 Symlink Race Condition via Path-Based Syscalls
Weaknesses CWE-367
CWE-59
References
Metrics cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 7.2, 'vector': 'CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-20T13:09:14.169Z

Reserved: 2026-05-01T18:22:45.639Z

Link: CVE-2026-43619

cve-icon Vulnrichment

Updated: 2026-05-20T13:09:09.691Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-20T02:16:36.577

Modified: 2026-06-17T10:49:55.293

Link: CVE-2026-43619

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-05-20T00:00:00Z

Links: CVE-2026-43619 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-20T10:38:40Z

Weaknesses