CVE-2026-15658 foreUP customer REST API allows unauthenticated endpoint access
Low-privilege customers can access other users' records via the foreUP customer REST API due to missing ownership checks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15658?
CVE-2026-15658 is a high-severity missing authorization vulnerability in foreUP, published on 30 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability in the foreUP customer REST API allows any authenticated, low-privilege customer to access an endpoint that returns the records of other users without checking that the caller owns the data associated with that record.
Weakness: CWE-639
Which versions are affected by CVE-2026-15658?
How do I fix CVE-2026-15658?
No fix has been published for CVE-2026-15658 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-2026-15658 being exploited?
There is no known exploitation of CVE-2026-15658 in the wild and no public exploit code.
Sources
Also known as GHSA-jhcw-2w66-f34v.