CVE-2026-55842 Scoold: CORS wildcard origin with credentials enabled allows cross-origin authenticated API access from any domain
Attackers can perform authenticated actions and read data on behalf of logged-in users via cross-origin requests due to insecure CORS configuration.
- 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-2026-55842?
CVE-2026-55842 is a medium-severity vulnerability in Erudika scoold, published on 15 Oct 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
Scoold is a Q&A and a knowledge sharing platform for teams. Prior to 1.69.1, the apiCorsConfiguration() method in src/main/java/com/erudika/scoold/ScooldServer.java combines addAllowedOriginPattern("*") with setAllowCredentials(true), causing Spring to reflect any requesting origin while allowing cookies or session tokens. A malicious website visited by a logged-in Scoold user can therefore issue authenticated API requests, read user data, questions, and configuration, and trigger state-changing operations on the user's behalf. This issue is fixed in version 1.69.1.
Which versions are affected by CVE-2026-55842?
How do I fix CVE-2026-55842?
No fix has been published for CVE-2026-55842 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-55842 being exploited?
There is no known exploitation of CVE-2026-55842 in the wild and no public exploit code.
Sources
Also known as GHSA-q684-4jqv-c63c.