CVE-2023-4785

Denial of Service in gRPC Core

State: Published
Severity: 7.5 High
Published: Sep 13, 2023
Updated: Jan 12, 2026
Reserved: Sep 6, 2023

Description

Lack of error handling in the TCP server in Google's gRPC starting version 1.23 on posix-compatible platforms (ex. Linux) allows an attacker to cause a denial of service by initiating a significant number of connections with the server. Note that gRPC C++ Python, and Ruby are affected, but gRPC Java, and Go are NOT affected.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	Google

Weaknesses

CWE-248

Affected Products

Product	Versions
gRPCGoogle	before 1.23Not affected 1.57Not affected 1.56.0 through 1.56.1Affectedfrom 1.56.2Not affected 1.55.0 through 1.55.2Affectedfrom 1.55.3Not affected 1.54.0 through 1.54.2Affectedfrom 1.54.3Not affected 1.53.0 through 1.53.1Affectedfrom 1.53.2Not affected

References

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