CVE-2026-100853 AzuraCast before 0.23.8 On-Demand Download Endpoint Authorization Bypass
Unauthenticated attackers can bypass access controls to download restricted media files from AzuraCast instances.
- 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-2026-100853?
CVE-2026-100853 is a high-severity missing authorization vulnerability in AzuraCast, published on 27 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In AzuraCast before 0.23.8, the public On-Demand download endpoint fails to verify playlist-level access controls, allowing unauthenticated users to download media files excluded from On-Demand-enabled playlists. Attackers can bypass the station operator's intended access restrictions by directly requesting media via the download endpoint using valid media identifiers, exposing private or restricted audio content.
Weakness: CWE-862
Which versions are affected by CVE-2026-100853?
How do I fix CVE-2026-100853?
No fix has been published for CVE-2026-100853 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-2026-100853 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100853 exists.
Sources
Also known as GHSA-j79h-v95g-w786, GHSA-q9cc-mp52-vrp9.