CVE-2026-100855 AzuraCast before 0.23.6 Missing Permission Check via /play
Authenticated users can download media files from unauthorized stations by exploiting a missing permission check in the play endpoint.
- 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-2026-100855?
CVE-2026-100855 is a high-severity missing authorization vulnerability in AzuraCast, published on 27 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
AzuraCast before 0.23.6 contains a missing permission check vulnerability in the GET /api/station/{station_id}/file/{id}/play endpoint that allows authenticated users to download media files from any station. Attackers can enumerate media files using sequential IDs and exfiltrate the complete media library of stations they lack permissions for.
Weakness: CWE-862
Which versions are affected by CVE-2026-100855?
2 open source packages ship an affected version, including azuracast/azuracast.
| Package | Affected | Fixed in |
|---|---|---|
azuracast/azuracast Packagist | All versions | 0.23.6 |
azuracast/azuracast Packagist | All versions | 0.23.6 |
How do I fix CVE-2026-100855?
Upgrade azuracast/azuracast to 0.23.6 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-100855 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100855 exists.
Sources
Also known as GHSA-qff7-q5fm-8p76, GHSA-rwfr-jcqg-x7jc.