Vulnerability · Published Jun 9, 2023 · Assigned by Google
CVE-2023-1428Denial-of-Service in gRPC
High 7.5
In plain English
A high-severity security flaw in gRPC from Google. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
There exists an vulnerability causing an abort() to be called in gRPC. The following headers cause gRPC's C++ implementation to abort() when called via http2: te: x (x != trailers) :scheme: x (x != http, https) grpclb_client_stats: x (x == anything) On top of sending one of those headers, a later header must be sent that gets the total header size past 8KB. We recommend upgrading past git commit 2485fa94bd8a723e5c977d55a3ce10b301b437f8 or v1.53 and above.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | io.grpc:grpc-protobuf | 1.53.0 | GHSA-6628-q6j9-w8vg |
| PyPI | grpcio | 1.53.0 | PYSEC-2026-1425 |
| PyPI | grpcio | 1.53.0 | GHSA-6628-q6j9-w8vg |
| RubyGems | grpc | 1.53.0 | GHSA-6628-q6j9-w8vg |
| Ubuntu:22.04:LTS | grpc | no fix listed | UBUNTU-CVE-2023-1428 |
| Ubuntu:24.04:LTS | grpc | no fix listed | UBUNTU-CVE-2023-1428 |
| Ubuntu:25.10 | grpc | no fix listed | UBUNTU-CVE-2023-1428 |
| Ubuntu:26.04:LTS | grpc | no fix listed | UBUNTU-CVE-2023-1428 |
| Ubuntu:26.10 | grpc | no fix listed | UBUNTU-CVE-2023-1428 |
Affected products (as reported)
Weakness: CWE-617 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H