๐Ÿ›ก๏ธ CVE-2026-32301
๐Ÿ”ด CVSS 9.5 โ€” Critical โš ๏ธ Exploit Public CWE-918 NVD
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Centrifugo is an open-source scalable real-time messaging server. Prior to 6.7.0, Centrifugo is vulnerable to Server-Side Request Forgery (SSRF) when configured with a dynamic JWKS endpoint URL using template variables (e.g. {{tenant}}). An unauthenticated attacker can craft a JWT with a malicious iss or aud claim value that gets interpolated into the JWKS fetch URL before the token signature is verified, causing Centrifugo to make an outbound HTTP request to an attacker-controlled destination. This vulnerability is fixed in 6.7.0.

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
CWE CWE-918
Public Exploit โš ๏ธ Yes
Source NVD
Published 2026-03-13
Updated 2026-06-15
Modified 2026-03-18
Fix URL N/A

Affected Packages

Software From version Fixed in
centrifugo โ€” 6.7.0
github.com/centrifugal/centrifugo โ€” โ€”
github.com/centrifugal/centrifugo/v3 โ€” โ€”
github.com/centrifugal/centrifugo/v4 โ€” โ€”
github.com/centrifugal/centrifugo/v5 โ€” โ€”
github.com/centrifugal/centrifugo/v6 โ€” โ€”

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