CVE-2026-21133 Path traversal in Samsung Flow
Local attackers can exploit a path traversal flaw in Samsung Flow to access sensitive clipboard data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-21133?
CVE-2026-21133 is a medium-severity path traversal vulnerability in Samsung Flow, published on 12 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Path traversal in Samsung Flow prior to version 4.9.22.1 allows local attackers to access clipboard data.
Weakness: CWE-22
Which versions are affected by CVE-2026-21133?
How do I fix CVE-2026-21133?
No fix has been published for CVE-2026-21133 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-21133 being exploited?
There is no known exploitation of CVE-2026-21133 in the wild and no public exploit code.
Sources
Also known as GHSA-4gxh-659v-jqg2.