CVE-2026-53800: rsync before 3.5.0 contains a symlink race condition vulnerability in the --remove-source-files feature that a

Routine

MEDIUM 4.7UPGRADE

CVE-2026-53800 is a medium-severity flaw (CVSS 4.7) 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 a symlink race condition vulnerability in the --remove-source-files feature that allows attackers with symlink creation access to cause arbitrary file deletion. Attackers can atomically substitute a symlink for a source file between transfer completion and the unlink() call, causing rsync to delete the symlink target rather than the intended source file.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.7 (Medium)
Attack vector	Local
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.1% (top 97%)
CISA exploited list	No
Weakness	CWE-59, CWE-367
Published	2026-08-13
Last modified	2026-10-23

Publisher (CNA): VulnCheck · Vendor: samba

Am I affected?

Timeline

2026-08-13 15:19 UTCPublished CVE record published
2026-10-23 18:10 UTCUpdated Record last modified

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.

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References

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