CVE-2026-21130 Missing authorization in Samsung Checkout

Medium 5.1 Published Updated

Local attackers can launch arbitrary activities with elevated privileges due to improper input validation in Samsung Checkout.

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-2026-21130?

CVE-2026-21130 is a medium-severity missing authorization vulnerability in Samsung Checkout, 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

Improper input validation in CreditCardRetrieveActivity of Samsung Checkout prior to version 5.1.03.1 allows local attackers to launch an arbitrary activity with Samsung Checkout privileges.

Weakness: CWE-20

Which versions are affected by CVE-2026-21130?

How do I fix CVE-2026-21130?

No fix has been published for CVE-2026-21130 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-21130 being exploited?

There is no known exploitation of CVE-2026-21130 in the wild and no public exploit code.

Sources

Also known as GHSA-9cg5-h2c5-4388.

Is CVE-2026-21130 in your software?

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