Security Advisory

CVE-2026-32301

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-03-12 21:19:03

Last updated 2026-03-13 13:09:57

Assigner GitHub_M

State PUBLISHED

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.

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