HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-53803 — rsync before 3.5.0 contains a symlink following vulnerability that allows local ...

·Source: NIST NVD

Updated:

Executive Summary

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

Analysis

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. CVSS Score: 7.8. Published: 2026-08-13T15:19:53.020.

Indicators of Compromise (1)

CVE (1)
CVE-2026-53803
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Aug 13, 2026. Verified by: NIST.

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