Detections
Analytics

CVE-2021-36154

high

Description

HTTP2ToRawGRPCServerCodec in gRPC Swift 1.1.1 and earlier allows remote attackers to deny service via the delivery of many small messages within a single HTTP/2 frame, leading to Uncontrolled Recursion and stack consumption.

References

https://github.com/grpc/grpc-swift/security/advisories/GHSA-4rhq-vq24-88gw

https://github.com/grpc/grpc-swift/releases

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35274

Details

Source: Mitre, NVD

Published: 2021-07-09

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.00846