CVE-2026-53793: rsync < 3.5.0 Path Confinement Bypass via /./ Boundary Marker in Chroot Mode

Overview

Severity

High (CVSS 7.4)

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploit Status

Not Exploited

Patch Tuesday

2026-Aug

Released

2026-08-23

EPSS Score

0.39% (percentile: 32.7%)

Affected Products (1)

Other

• 21597-17084

Revision History

• 2026-08-23: Information published.