Attestkeep
Language: English
Sign up

Vulnerabilities / CVE-2026-32301

critical

CVE-2026-32301

Centrifugo: SSRF via unverified JWT claims interpolated into dynamic JWKS endpoint URL

Published Modified CWE 918
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

GHSA9.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

Trivy's own label is CRITICAL. Rated critical by GHSA.

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.

Affected packages and fixed versions

SourcePackageFixed in
go::GitHub Security Advisory Gogithub.com/centrifugal/centrifugo, github.com/centrifugal/centrifugo/v3, github.com/centrifugal/centrifugo/v4 and 2 more6.7.0
Show all 5 entries from 1 source
SourcePackageFixed in
go::GitHub Security Advisory Gogithub.com/centrifugal/centrifugono fix listed
go::GitHub Security Advisory Gogithub.com/centrifugal/centrifugo/v3no fix listed
go::GitHub Security Advisory Gogithub.com/centrifugal/centrifugo/v4no fix listed
go::GitHub Security Advisory Gogithub.com/centrifugal/centrifugo/v5no fix listed
go::GitHub Security Advisory Gogithub.com/centrifugal/centrifugo/v66.7.0

References

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.