CVE-2026-53803
HIGH
MEDIUM
Priority: 0.02
BB Relevance:
42/100
Published: 2026-08-13
Modified: 2026-10-24
First seen: 2026-10-29
Status: active
Attack Surface
Low Complexity
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
X
AT:
None
VC:
High
VI:
High
VA:
High
Description
rsync before 3.5.0 contains a symlink following vulnerability that allows local attackers to overwrite arbitrary files by placing a symlink at a predictable output path such as --log-file, --write-batch, or daemon-mode log and statistics paths. Attackers can exploit rsync's failure to reject symlinks during ancillary file writes to redirect output to arbitrary filesystem locations, achieving local privilege escalation on installations where rsync runs with elevated privileges such as setuid or privileged daemon configurations.
Weakness Classification (1)
References & Advisories (3)
Vendor Advisory
Release Notes
Third Party Advisory
Product
Release Notes