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CVE-2026-49998
HIGH(8.2)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Risk Signal Score31/100 — MITTEL
- CVSS 8.2 — Hoch
- Weniger als 24 Stunden alt
Beschreibung
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.
GitHub Advisories
GHSA-g6vg-wj8f-48cjHIGH
Centrifugo's dynamic JWKS key cache keyed only by `kid` allows cross-issuer JWT authentication bypass
go/github.com/centrifugal/centrifugo/v6→ 6.8.1
GitHub Advisory