VULNERABILITY INTELLIGENCE

CVE-2026-53793

CVSS score7.4 HIGH
EPSS probability0.39%
CISA KEVNot currently listed
Published2026-08-13
Last modified2026-10-24
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Description

rsync before 3.5.0 contains a path confinement bypass vulnerability that allows remote clients to escape the intended inner-module root confinement by constructing paths that resolve outside the chroot boundary when the module root contains a /./ boundary marker. Attackers can exploit improper handling of the /./ notation or forge delta-basis transfers referencing xname paths that cross the /./ boundary to gain unauthorized read or write access to files outside the module's subtree.

Weakness classification

  • disclosure@vulncheck.com: CWE-59

Primary references