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CVE-2026-53802: rsync before 3.5.0 contains an arbitrary file read vulnerability that allows attackers to read files accessibl

28
Routine
HIGH 7.1UPGRADE

CVE-2026-53802 is a high-severity flaw (CVSS 7.1) affecting rsync. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

rsync before 3.5.0 contains an arbitrary file read vulnerability that allows attackers to read files accessible to the rsync daemon process by exploiting symlink following in input configuration file handling including --files-from, --password-file, and filter merge files. Attackers can place a symlink at a predictable --files-from or --password-file path, or supply a --files-from path that escapes the daemon module root, to read arbitrary files

Why this priority

  • High severity

A fixed release or distro patch exists.

Risk facts

CVSS score7.1 (High)
Attack vectorLocal
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance0.2% (top 86%)
CISA exploited listNo
WeaknessCWE-61
Published2026-08-13
Last modified2026-10-23
Publisher (CNA): VulnCheck · Vendor: samba

Last updated 2026-10-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

samba rsync UPGRADE
Affected: < 3.5.0
Fixed in: 3.5.0
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy rsync || rpm -q rsync || rsync --version
2. UPGRADE to 3.5.0 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade rsync
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade rsync
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-53802?

rsync: upgrade to 3.5.0. Exact commands for each OS are on this page.

Is CVE-2026-53802 being exploited?

CVE-2026-53802 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-53802 affect?

CVE-2026-53802 affects rsync. Severity is high (CVSS 7.1). rsync before 3.5.0 contains an arbitrary file read vulnerability that allows attackers to read files accessible to the rsync daemon process by exploiting symlink following in input configuration file handling including --files-from, --passw

How urgent is CVE-2026-53802?

Priority 28/100. High severity

Software pages

Samba vulnerabilities

Related CVEs

References

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