CVE-2026-32301

critical · 9.3

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.

9.3

CVSS

0.3%

EPSS (exploit prob.)

18th

EPSS percentile

2026-03-13

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

Weaknesses

CWE-918

Affected products

Vendor	Product	Affected versions
centrifugal	centrifugo	< 6.7.0

Check a specific version with /api/v1/cve/match.

References

https://github.com/centrifugal/centrifugo/security/advisories/GHSA-j77h-rr39-c552

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-32301