What’s Vulnerable › Vulnerabilities

CVE-2021-36153

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-07-09 · updated 2026-06-17

Description

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

• grpc-swift: 1.1.0, 1.1.1

References

• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35267
• https://github.com/grpc/grpc-swift/releases
• https://github.com/grpc/grpc-swift/security/advisories/GHSA-2jx2-qcm4-rf9h
• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35267
• https://github.com/grpc/grpc-swift/releases
• https://github.com/grpc/grpc-swift/security/advisories/GHSA-2jx2-qcm4-rf9h

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