Vulnerability · Published Nov 3, 2026 · Assigned by VulnCheck

CVE-2026-121431AzuraCast before 0.24.0 SSRF Filter Bypass via Webhook Connectors

Medium 5.3

In plain English

A medium-severity server-side request forgery in AzuraCast from AzuraCast. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.3%top 80.0% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

AzuraCast before 0.24.0 contains a server-side request forgery vulnerability that allows station users with WebHooks permission to bypass the UserUrlFilter guard via the Mastodon, Telegram, GroupMe, and RadioReg connectors. Attackers can set instance_url, api, or webhookurl to internal addresses and trigger the webhook test endpoint to reach loopback, private-network, or cloud-metadata services.

Affected products (as reported)

Vendor	Product	Versions
AzuraCast	AzuraCast	0 – before 0.24.0

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References

GitHub Security Advisory (GHSA-qh22-76gf-qwc4) vendor-advisory
VulnCheck Advisory: AzuraCast before 0.24.0 SSRF Filter Bypass via Webhook Connectors third-party-advisory