CVE-2026-53794: rsync 0 through 3.4.4

CVE-2026-53794. CVSS 3.1 base score 5.3 (MEDIUM, Vendor/CNA). EPSS 0.00507 (percentile 0.42335), 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) · No privileges required · No user interaction required

What an attacker can do

Attackers can exploit this flaw to cause the receiver to attempt unbounded memory allocations for file list and data structures, potentially exhausting available memory and causing a denial of service. Vendor/CNA’s CVSS 4.0 assessment (base score 6.9/10) rates confidentiality and integrity impact as none; availability impact as low.

Published 24-Oct-2026 01:44 UTC

CWE: CWE-1284
CCR priority: 21.3 /100 (P4)
CVSS 3.1: 5.3 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L · Vendor/CNA
EPSS: 0.00507 · percentile 0.42335 · 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-2026-53794.html