High severity7.5NVD Advisory· Published Jul 9, 2021· Updated Jun 17, 2026
CVE-2021-36153
CVE-2021-36153
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/grpc/grpc-swiftSwiftURL | < 1.2.0 | 1.2.0 |
Affected products
2- gRPC Swift/gRPC Swiftdescription
Patches
Vulnerability mechanics
References
5- bugs.chromium.org/p/oss-fuzz/issues/detailnvdMailing ListThird Party AdvisoryWEB
- github.com/advisories/GHSA-2jx2-qcm4-rf9hghsaADVISORY
- github.com/grpc/grpc-swift/releasesnvdRelease NotesThird Party AdvisoryWEB
- github.com/grpc/grpc-swift/security/advisories/GHSA-2jx2-qcm4-rf9hnvdThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-36153ghsaADVISORY
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