CVE-2026-53799: rsync before 3.5.0 (exclusive), 0 through 3.4.4

CVE-2026-53799. CVSS 3.1 base score 6.3 (MEDIUM, Vendor/CNA). EPSS 0.00122 (percentile 0.01864), scored 22-Oct-2026.

Affected technology

rsync · before 3.5.0 (exclusive)
samba

rsync · 0 through 3.4.4
RsyncProject

Description’s affected range: before 3.5.0

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Local · Low privileges required · No user interaction required

What an attacker can do

Local attackers can cause rsync to apply arbitrary ACLs or extended attributes to unintended files by substituting a symlink at a predictable destination path between the file write and the subsequent acl_set_file() or lsetxattr() call. Vendor/CNA’s CVSS 4.0 assessment (base score 7.2/10) rates confidentiality and integrity impact as high; availability impact as none.

Published 24-Oct-2026 01:44 UTC

CWE: CWE-59, CWE-367
CCR priority: 25.2 /100 (P4)
CVSS 3.1: 6.3 /10 · CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N · Vendor/CNA
EPSS: 0.00122 · percentile 0.01864 · 2026-10-22
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-24 01:40:49.068977+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-53799.html