AzuraCast before 0.23.4 Remote Code Execution via Liquidsoap string interpolation (CVE-2026-100857) | HOL Guard CVE

High · CVSS 8.6CVE-2026-100857

AzuraCast before 0.23.4 Remote Code Execution via Liquidsoap string interpolation

Answer in brief

CVE-2026-100857 records a High severity (CVSS 8.6) vulnerability in AzuraCast before 0.23.4 Remote Code Execution via Liquidsoap string interpolation. The current sources do not mark it as known exploited. The current feed maps AzuraCast/AzuraCast (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 27, 2026Updated Sep 27, 2026Source checked Sep 27, 2026First seen by HOL Sep 27, 2026Material review Sep 27, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.6
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 8.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps AzuraCast/AzuraCast (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
AzuraCast/AzuraCastgeneric	>=0 <0.23.4	0.23.4

Recommended response

Check inventory. Check lockfiles and deployed manifests for AzuraCast/AzuraCast.
Review the reported fix. Update AzuraCast/AzuraCast to 0.23.4 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 27, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.