CVE-2026-3999 Broken access control vulnerability affecting ID Server
Authenticated users can perform horizontal privilege escalation in Pointsharp ID Server under specific configurations, allowing unauthorized access to other users' data.
- 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-2026-3999?
CVE-2026-3999 is a high-severity authentication bypass vulnerability in Pointsharp ID Server, published on 13 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A broken access control may allow an authenticated user to perform a horizontal privilege escalation. The vulnerability only impacts specific configurations.
Weakness: CWE-639
Which versions are affected by CVE-2026-3999?
It affects 1 product.
Products include Pointsharp Id Server.
How do I fix CVE-2026-3999?
No fix has been published for CVE-2026-3999 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-3999 being exploited?
There is no known exploitation of CVE-2026-3999 in the wild and no public exploit code.
Sources
Also known as GHSA-2p4q-qchf-h9q6.