CVE-2026-112291 Flarum Extension Manager 2.0.0-beta.1 before 2.0.0-beta.8 Missing Authorization via Task API
Unauthenticated attackers can access the Task API to disclose sensitive system information like filesystem paths and installed extensions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-112291?
CVE-2026-112291 is a medium-severity missing authorization vulnerability in Flarum Extension Manager, published on 19 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Flarum Extension Manager 2.0.0-beta.1 before 2.0.0-beta.8 lacks authentication and admin checks on the TaskResource index endpoint, allowing unauthenticated information disclosure. Remote attackers can send GET requests to /api/extension-manager-tasks to read task output revealing filesystem paths, installed extensions, versions, and PHP version.
Weakness: CWE-862
Which versions are affected by CVE-2026-112291?
How do I fix CVE-2026-112291?
No fix has been published for CVE-2026-112291 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-2026-112291 being exploited?
There is no known exploitation of CVE-2026-112291 in the wild and no public exploit code.
Sources
Also known as GHSA-6p4m-p9g8-5x3c.