CVE-2026-42605Public exploitNetwork attack vector

Authenticated code execution via upload path traversal

Published May 9, 2026 · Updated May 9, 2026

Path traversal in AzuraCast before 0.23.6 allows remote authenticated users to execute code via a crafted media upload path. FlowUploadAction prepends the unsanitized currentDirectory value after filename filtering, and MediaProcessor's finally block uploads even rejected files. A DJ or station manager with media permission can exploit the default local-storage backend to place a PHP webshell outside the media root and run commands as the application user.

CVSS severity8.8
High
EPSS probability0.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in AzuraCast before 0.23.6 allows remote authenticated users to execute code via a crafted media upload path. FlowUploadAction prepends the unsanitized currentDirectory value after filename filtering, and MediaProcessor's finally block uploads even rejected files. A DJ or station manager with media permission can exploit the default local-storage backend to place a PHP webshell outside the media root and run commands as the application user.

The record

CVE
CVE-2026-42605
Published
May 9, 2026
Updated
May 9, 2026
Vendor
AzuraCast
Product
AzuraCast
Classifications
CWE-22, T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 9, 2026CVE publishedPublication date reported by the CVE source.
  2. May 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.23.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

AzuraCast · AzuraCastversion=< 0.23.6

Published CVSS scores

8.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1505.003Server Software Component: Web Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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