PYSEC-2026-1428
Denial of Service Vulnerability in gRPC TCP Server (Posix-compatible platforms)
At a glance
- Published
- Updated
- CVE
- CVE-2023-4785
- Aliases
- GHSA-p25m-jpj4-qcrr
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
Affected packages
| Package | Versions |
|---|---|
| PyPI · grpcio | introduced 1.55.0, fixed 1.55.3, introduced 1.54.0, fixed 1.54.3, introduced 1.53.0, fixed 1.53.2 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2023-4785 ADVISORY
- https://github.com/grpc/grpc/pull/33656 WEB
- https://github.com/grpc/grpc/pull/33667 WEB
- https://github.com/grpc/grpc/pull/33669 WEB
- https://github.com/grpc/grpc/pull/33670 WEB
- https://github.com/grpc/grpc/pull/33672 WEB
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/grpc/CVE-2023-4785.yml WEB
- https://groups.google.com/g/grpc-io/c/LlLkB1CeE4U WEB
- https://rubygems.org/gems/grpc/versions/1.53.2 WEB
- https://rubygems.org/gems/grpc/versions/1.54.3 WEB
- https://rubygems.org/gems/grpc/versions/1.55.3 WEB
- https://rubygems.org/gems/grpc/versions/1.56.2 WEB
- https://pypi.org/project/grpcio PACKAGE
- https://github.com/advisories/GHSA-p25m-jpj4-qcrr ADVISORY
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — PyPA Advisory Database |