URL Validation Flaw in AzuraCast Web Radio Management Suite
CVE-2026-100849

7.1HIGH

Key Information:

Vendor

Azuracast

Status
Azuracast
Vendor
CVE Published:
27 September 2026

What is CVE-2026-100849?

AzuraCast is a self-hosted web radio management solution that exhibits a critical flaw in its webhook URL validation. Prior to version 0.23.8, the software fails to adequately restrict webhook URLs, allowing users with limited permissions to configure URLs that invoke server-side request forgery (SSRF). Specifically, the validation only guards against literal link-local IP addresses, neglecting loopback and private network addresses. Consequently, this vulnerability enables low-privileged users to trigger unwanted outbound HTTP requests containing sensitive data, thereby compromising the security of the server and its data integrity.

Affected Version(s)

AzuraCast 0 < 0.23.8

AzuraCast 0.23.8

References

https://github.com/AzuraCast/AzuraCast/security/advisorie...
vendor-advisory
https://www.vulncheck.com/advisories/azuracast-before-0.2...
third-party-advisory

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.