VULNERABILITY INTELLIGENCE

CVE-2021-36154

CVSS score7.5 HIGH

EPSS probability2.08%

CISA KEVNot currently listed

Published2021-07-09

Last modified2026-06-17

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

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.

Weakness classification

nvd@nist.gov: CWE-674

Primary references

cve@mitre.org — Mailing List, Third Party Advisory
cve@mitre.org — Release Notes, Third Party Advisory
cve@mitre.org — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory