Critical severity9.3NVD Advisory· Published Mar 13, 2026· Updated Jun 17, 2026
CVE-2026-32301
CVE-2026-32301
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/centrifugal/centrifugo/v6Go | < 6.7.0 | 6.7.0 |
github.com/centrifugal/centrifugoGo | <= 2.4.0 | — |
github.com/centrifugal/centrifugo/v3Go | <= 3.2.3 | — |
github.com/centrifugal/centrifugo/v4Go | <= 4.1.5 | — |
github.com/centrifugal/centrifugo/v5Go | <= 5.4.9 | — |
Affected products
9cpe:2.3:a:centrifugal:centrifugo:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:centrifugal:centrifugo:*:*:*:*:*:*:*:*range: <6.7.0
- (no CPE)range: < 6.7.0
- ghsa-coords7 versionspkg:golang/github.com/centrifugal/centrifugo/v6pkg:golang/github.com/centrifugal/centrifugopkg:golang/github.com/centrifugal/centrifugo/v3pkg:golang/github.com/centrifugal/centrifugo/v4pkg:golang/github.com/centrifugal/centrifugo/v5pkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2015.6
< 6.7.0+ 6 more
- (no CPE)range: < 6.7.0
- (no CPE)range: <= 2.4.0
- (no CPE)range: <= 3.2.3
- (no CPE)range: <= 4.1.5
- (no CPE)range: <= 5.4.9
- (no CPE)range: < 0.0.20260723T184607-160000.1.1
- (no CPE)range: < 0.0.20260326T203309-150000.1.155.2
Patches
Vulnerability mechanics
References
4- github.com/centrifugal/centrifugo/security/advisories/GHSA-j77h-rr39-c552nvdExploitMitigationVendor AdvisoryWEB
- github.com/advisories/GHSA-j77h-rr39-c552ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-32301ghsaADVISORY
- pkg.go.dev/vuln/GO-2026-4702ghsaWEB
News mentions
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