CVE-2021-36153: Linuxfoundation Grpc Swift

High severity, CVSS 7.5. EPSS: 2.1% chance of exploitation in the next 30 days.

Mismanaged state in GRPCWebToHTTP2ServerCodec.swift in gRPC Swift 1.1.0 and 1.1.1 allows remote attackers to deny service by sending malformed requests.

Affected products

• Linuxfoundation Grpc Swift: version 1.1.0 only; version 1.1.1 only

Published 2021-07-09. Last modified 2026-06-17.