CVE-2026-56877 Business logic in SCORM Lab Launch Integration
Authenticated users can bypass rate limits and exhaust other users' lab allocations by manipulating the userId parameter, causing denial of service.
- 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-2026-56877?
CVE-2026-56877 is a medium-severity vulnerability in Skillable SCORM Lab Launch Integration, published on 13 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The SCORM lab launch endpoint in Skillable (scorm.skillable.com) through 2026-07-13 does not validate the client-supplied userId parameter against the authenticated SCORM session token. An authenticated user can substitute arbitrary userId values to bypass per-user lab launch rate limits and consume other users' lab allocations, resulting in denial of service against targeted users' lab and exam access. Skillable was formerly named Learn on Demand Systems.
Weakness: CWE-472
Which versions are affected by CVE-2026-56877?
How do I fix CVE-2026-56877?
No fix has been published for CVE-2026-56877 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-56877 being exploited?
There is no known exploitation of CVE-2026-56877 in the wild and no public exploit code.
Sources
Also known as GHSA-p34h-76m7-24qh.