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Traefik: Deny Rule Bypass via Unauthenticated Malicious gRPC Requests in gRPC-Go Dependency (CVE-2026-33186)
Traefik: Deny Rule Bypass via Unauthenticated Malicious gRPC Requests in gRPC-Go Dependency (CVE-2026-33186)
Affected packages
- github.com/traefik/traefik/v2
- github.com/traefik/traefik/v3
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://github.com/traefik/traefik/security/advisories/GHSA-46wh-3698-f2cx
- https://github.com/advisories/GHSA-p77j-4mvh-x3m3
- https://github.com/traefik/traefik
- https://github.com/traefik/traefik/blob/67c64ed9b25fbb90f1086977a62827133a7aa01b/go.mod#L108
- https://github.com/traefik/traefik/releases/tag/v2.11.42
- https://github.com/traefik/traefik/releases/tag/v3.6.12
- https://github.com/traefik/traefik/releases/tag/v3.7.0-ea.3
Structured record: https://osv.dev/vulnerability/GHSA-46wh-3698-f2cx
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