RCE in Azuracast
CVE-2026-100857
AzuraCast before 0.23.4 contains a code injection vulnerability in the ConfigWriter::cleanUpString() method that fails to sanitize Liquidsoap string interpolation sequences, allowing authenticated users with Media or Profile permissions to inject arbitrary Liquidsoap code into station configuration. Attackers can inject #{process.run()} expressions into playlist URLs or station metadata fields that execute shell commands as the azuracast user when the station restarts.
Vulnerability class: RCE (Remote Code Execution)
Published .
CVSS v3 metric
CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/AzuraCast/AzuraCast/security/advisories/GHSA-93fx-5qgc-wr38 (vendor-advisory)
- www.vulncheck.com/advisories/azuracast-before-0.23.4-remote-code-execution-via-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100857?
- CVE-2026-100857 is a high-severity vulnerability in Azuracast, classified under Code Injection. CVSS score: 8.0/10. Published 2026-09-27.
- How severe is CVE-2026-100857?
- High severity. CVSS v3 base score is 8.0 out of 10.