CVE-2026-49998
Description
Centrifugo is an open-source scalable real-time messaging server. Prior to 6.8.1, Centrifugo dynamic JWKS endpoint verification could reuse a key for one allowed issuer to verify a JWT for another allowed issuer because the JWKS cache and singleflight lookup were keyed only by JWT header kid, not by the resolved JWKS endpoint, issuer, audience, or trust-domain namespace, affecting client.token.jwks_public_endpoint, client.subscription_token.jwks_public_endpoint, internal/jwks/cache.go, and internal/jwks/manager.go. This issue is fixed in version 6.8.1.
How to fix
- github.com/centrifugal/centrifugo/v66.8.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| github.com/centrifugal/centrifugo/v6Go | v < 6.8.1 | 6.8.1 |
| github.com/centrifugal/centrifugo/v5Go | v ≤ 5.4.9, No range specified | — |
| github.com/centrifugal/centrifugo/v4Go | v ≤ 4.1.5, No range specified | — |
| github.com/centrifugal/centrifugo/v3Go | v ≤ 3.2.3, No range specified | — |
| github.com/centrifugal/centrifugoGo | v ≤ 2.4.0, No range specified | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.