Quick answers
- Is CVE-2026-100857 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-100857 being exploited in the wild.
- How severe is CVE-2026-100857?
- High severity, with a CVSS score of 8, published 27 September 2026.
- Which products and versions are affected?
- AzuraCast before 0.23.4.
- Is there a fix for CVE-2026-100857?
- A patch was published on 2026-09-27: Version 0.23.4 released with fix Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-100857 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-100857?
- Check whether you run AzuraCast at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The ConfigWriter::cleanUpString() method fails to sanitize Liquidsoap string interpolation sequences (#{...}), allowing code injection into station configuration files. Authenticated users with StationPermissions::Media or StationPermissions::Profile can inject #{process.run()} expressions into playlist URLs or metadata fields; when the station restarts, Liquidsoap evaluates these expressions and executes arbitrary shell commands as the azuracast user.
Affected products
- AzuraCast AzuraCast before 0.23.4
Timeline
- 2026-09-27: disclosed
- 2026-09-27: patched: Version 0.23.4 released with fix