Is CVE-2026-42605 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-42605 being exploited in the wild.

How severe is CVE-2026-42605?

High severity, with a CVSS score of 8.8, published 9 May 2026.

Which products and versions are affected?

AzuraCast < 0.23.6, <= 0.23.5; azuracast/azuracast (Packagist) <= 0.23.5, ECOSYSTEM:introduced=0,fixed=0.23.6.

Is there a fix for CVE-2026-42605?

Yes. azuracast/azuracast (Packagist): upgrade to 0.23.6 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-42605 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-42605?

Check whether you run AzuraCast or azuracast/azuracast (Packagist) 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.

CVE-2026-42605: AzuraCast path traversal and RCE in Flow.js media upload

Q: Which products and versions are affected?

AzuraCast < 0.23.6, <= 0.23.5; azuracast/azuracast (Packagist) <= 0.23.5, ECOSYSTEM:introduced=0,fixed=0.23.6.

Q: Is there a fix for CVE-2026-42605?

Yes. azuracast/azuracast (Packagist): upgrade to 0.23.6 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Q: How is CVE-2026-42605 attacked?

It is attacked over the network, in a network appliance.

Q: Am I affected by CVE-2026-42605?

Check whether you run AzuraCast or azuracast/azuracast (Packagist) 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.

CVE-2026-42605 · Severity: high · CVSS 8.8 · Published 2026-05-09

AzuraCast is a web-based radio management platform used to host and manage radio stations. A security flaw in the media upload system allows users with basic media management permissions (such as DJs or station managers) to bypass security restrictions and write files to unauthorized locations on the server. By uploading a malicious script, an attacker can take full control of the server, access sensitive listener data, or disrupt radio operations.

Technologies: AzuraCast, azuracast/azuracast (Packagist). Vendors: AzuraCast, Packagist.

Quick answers

Is CVE-2026-42605 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-42605 being exploited in the wild.
How severe is CVE-2026-42605?: High severity, with a CVSS score of 8.8, published 9 May 2026.
Which products and versions are affected?: AzuraCast < 0.23.6, <= 0.23.5; azuracast/azuracast (Packagist) <= 0.23.5, ECOSYSTEM:introduced=0,fixed=0.23.6.
Is there a fix for CVE-2026-42605?: Yes. azuracast/azuracast (Packagist): upgrade to 0.23.6 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-42605 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-42605?: Check whether you run AzuraCast or azuracast/azuracast (Packagist) 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.

How to fix

azuracast/azuracast (Packagist): upgrade to 0.23.6 or later
```
composer require azuracast/azuracast:^0.23.6
```

Technical details

A path traversal vulnerability exists in the Flow.js media upload endpoint (POST /api/station/{station_id}/files/upload) due to insufficient sanitization of the 'currentDirectory' parameter. While filenames are filtered, the 'currentDirectory' input is prepended to the path without validation. Furthermore, a 'finally' block in the MediaProcessor component ensures files are written to the filesystem even if they fail MIME-type validation (e.g., PHP files). When using the default local filesystem storage, the application uses simple string concatenation that bypasses standard path normalization, allowing an authenticated user with 'Media' permissions to write a PHP webshell into the web root. This results in Remote Code Execution (RCE) as the application user. The issue is fixed in version 0.23.6.

Affected products

AzuraCast AzuraCast < 0.23.6

Identifiers

CVE-2026-42605
GHSA-vp2f-cqqp-478j

Timeline

2026-04-23: advisory: GitHub Security Advisory published
2026-04-24: patched: Version 0.23.6 released
2026-05-09: disclosed: CVE-2026-42605 published

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.