CVE-2026-121431

AzuraCast before 0.24.0 SSRF Filter Bypass via Webhook Connectors

6.9 Medium

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: Low
Availability: None

Exploit likelihood

0.27%Unchanged since Nov 4, 2026

What each source reports

CVE List Score used 6.9

AzuraCast before 0.24.0 SSRF Filter Bypass via Webhook Connectors

Record: CVE-2026-121431
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness: CWE-918
Updated: 2026-11-03

EUVDEUVD-2026-115853 6.9

Record: EUVD-2026-115853
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L
Updated: 2026-11-03

GitHub AdvisoriesGHSA-8x7j-92r4-99vr 6.9

AzuraCast before 0.24.0 contains a server-side request forgery vulnerability that allows station...

Record: GHSA-8x7j-92r4-99vr
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness: CWE-918
Updated: 2026-11-03

NVD 6.9

Record: CVE-2026-121431
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness: CWE-918
Updated: 2026-11-03

OSV 6.9

AzuraCast before 0.24.0 SSRF Filter Bypass via Webhook Connectors

Record: CVE-2026-121431
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L
Weakness: CWE-918
Updated: 2026-11-05

Affected products

azuracast

History

History
Recorded	Changed	Sources
Nov 4, 2026	aliases, references	OSV
Nov 3, 2026	published	EUVD, GitHub Advisories, NVD
Nov 3, 2026	facts, published	EUVD
Nov 3, 2026	aliases, published	EUVD
Nov 3, 2026	first indexed	CVE List, GitHub Advisories

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-121431 is a medium vulnerability (CVSS 6.9) in Azuracast, published November 3, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 20th percentile. No source names a fixed version.