CVE-2026-21075 Missing authorization in My Galaxy
Remote attackers can access sensitive information via improper authorization in the custom URL scheme handler of the Samsung My Galaxy mobile application.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-21075?
CVE-2026-21075 is a medium-severity missing authorization vulnerability in Samsung Mobile My Galaxy, published on 10 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Improper authorization in handler for custom URL scheme in My Galaxy prior to version 6.3 allows remote attackers to access sensitive information.
Weakness: CWE-939
Which versions are affected by CVE-2026-21075?
How do I fix CVE-2026-21075?
No fix has been published for CVE-2026-21075 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-2026-21075 being exploited?
There is no known exploitation of CVE-2026-21075 in the wild and no public exploit code.
Sources
Also known as GHSA-grg8-xhr3-987r.