RCE in Azuracast
CVE-2026-100856
AzuraCast before 0.23.6 contains a code injection vulnerability in the remote relay password field due to incomplete migration from the vulnerable cleanUpString method to toRawString. Attackers with RemoteRelays station permission can inject nested Liquidsoap interpolation syntax to execute arbitrary code in the Liquidsoap process, disclose internal API keys, or disrupt station operation.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (40.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.001
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-q4ph-8x8g-95f8) (vendor-advisory)
- VulnCheck Advisory: AzuraCast before 0.23.6 Code Injection via Remote Relay Password (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100856?
- CVE-2026-100856 is a high-severity vulnerability in Azuracast, classified under Code Injection. CVSS score: 8.8/10. Published 2026-09-27.
- How severe is CVE-2026-100856?
- High severity. CVSS v3 base score is 8.8 out of 10.