High · CVSS 8.7CVE-2026-121428

AzuraCast through 0.23.8 RCE via Supervisor Configuration Injection in TimezoneCVE-2026-121428

Answer in brief

CVE-2026-121428 records a High severity (CVSS 8.7) vulnerability in AzuraCast through 0.23.8 RCE via Supervisor Configuration Injection in Timezone. 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 Nov 3, 2026Updated Nov 3, 2026Source checked Nov 3, 2026First seen by HOL Nov 3, 2026Material review Nov 3, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.7
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 8.7. 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 <=0.23.8	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for AzuraCast/AzuraCast.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Nov 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Nov 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Nov 3, 2026

Sources and claim methodology

Upstream source description

AzuraCast through 0.23.8 contains a remote code execution vulnerability that allows authenticated station managers to inject Supervisor configuration through the station timezone field. Attackers can submit a timezone containing newlines to the profile edit API, defining a new Supervisor program that executes OS commands as root when configuration regenerates.

Quoted source text, attributed separately from HOL analysis.

Ziroom ZHOME A0101 Lua zrUsb.lua loadstring code injectionAlso CWE-94