Auth bypass in Azuracast
CVE-2026-100855
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (11.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-qff7-q5fm-8p76) (vendor-advisory)
- VulnCheck Advisory: AzuraCast before 0.23.6 Missing Permission Check via /play (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100855?
- CVE-2026-100855 is a medium-severity vulnerability in Azuracast, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-09-27.
- How severe is CVE-2026-100855?
- Medium severity. CVSS v3 base score is 6.5 out of 10.