AzuraCast up to 0.23.x Permissions Middleware improper authorization

Summaryinfo

A vulnerability categorized as critical has been discovered in AzuraCast up to 0.23.x. This impacts an unknown function of the component Permissions Middleware. Such manipulation leads to improper authorization. This vulnerability is referenced as CVE-2026-121430. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in AzuraCast up to 0.23.x and classified as critical. Affected by this issue is an unknown functionality of the component Permissions Middleware. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. CVE summarizes:

AzuraCast before 0.24.0 contains a missing authorization vulnerability in the GET and POST /api/station/{station_id}/waveform/{media_id} routes, which lack Permissions middleware. Any authenticated user without station assignment can read another station's cached waveform JSON and overwrite it with attacker-supplied data, corrupting Visual Cue Editor data.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-121430 since 11/03/2026. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1548.002.

Upgrading to version 0.24.0 eliminates this vulnerability.

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Productinfo

Name

• AzuraCast

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23

Website

• Product: https://github.com/AzuraCast/AzuraCast/

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