CVE-2026-53783: rsync 0 through 3.4.4

CVE-2026-53783. CVSS 3.1 base score 8.1 (HIGH, Vendor/CNA). EPSS 0.00374 (percentile 0.30165), scored 22-Oct-2026.

Affected technology

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): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

Attackers can additionally leverage unrestricted flags such as --copy-unsafe-links, -D, and --log-file through rrsync to read or write files outside the permitted directory subtree. Vendor/CNA’s CVSS 4.0 assessment (base score 8.6/10) rates confidentiality and integrity impact as high; availability impact as none.

Published 24-Oct-2026 01:43 UTC

CWE: CWE-59, CWE-88
CCR priority: 32.5 /100 (P4)
CVSS 3.1: 8.1 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N · Vendor/CNA
EPSS: 0.00374 · percentile 0.30165 · 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-2026-53783.html