High
grpc — security advisory
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.
- Products
- grpc
- Affected versions
- 0.10.2-1, 0.11.1-1, 1.16.1-1, 1.16.1-1ubuntu1, 1.16.1-1ubuntu3, 1.16.1-1ubuntu4, 1.16.1-1ubuntu5, 1.3.2-1, 1.3.2-1.1~build1, 1.3.2-1ubuntu1, 1.30.2-3, 1.30.2-3build1, 1.30.2-3build3, 1.30.2-3build5, 1.30.2-3build6, 1.51.1-10ubuntu1, 1.51.1-3build3, 1.51.1-3build4, 1.51.1-4, 1.51.1-4.1build3, 1.51.1-4.1build4, 1.51.1-4.1build5, 1.51.1-4build1, 1.51.1-4build2, 1.51.1-6, 1.51.1-6build1, 1.51.1-7, 1.51.1-7ubuntu2, 1.51.1-7ubuntu3, 1.51.1-8ubuntu1, 1.51.1-9, 1.51.1-9ubuntu3
- Fixed versions
- Not specified
- CVEs
- CVE-2023-4785
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:11 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2023-4785
grpc
Fixed versions: Not specified
grpc
Fixed versions: Not specified
grpc
Fixed versions: Not specified
grpc
Fixed versions: Not specified
grpc
Fixed versions: Not specified
grpc
Fixed versions: Not specified
grpc
Fixed versions: Not specified
grpc
Fixed versions: Not specified
Complete source record
{
"id": "f3254cd3d67430ea199e4d40e87841f00d2738cfbe0569e94fd0465bcd12db65",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2023-4785",
"method": "structured",
"payload": {
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"title": "UBUNTU-CVE-2023-4785",
"summary": "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.",
"evidence": "osv:UBUNTU-CVE-2023-4785",
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{
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"evidence": "/affected/6/package/name"
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{
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"evidence": "/affected/6/versions"
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{
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{
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"aliases": [
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"ecosystem_specific": {
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],
"modified": "2026-10-17T12:56:42.345978664Z",
"provider": "osv",
"upstream": [
"CVE-2023-4785"
],
"references": [
"https://ubuntu.com/security/CVE-2023-4785",
"https://github.com/grpc/grpc/pull/33656",
"https://github.com/grpc/grpc/pull/33667",
"https://github.com/grpc/grpc/pull/33669",
"https://github.com/grpc/grpc/pull/33670",
"https://github.com/grpc/grpc/pull/33672",
"https://www.cve.org/CVERecord?id=CVE-2023-4785"
]
},
"related_cves": [
{
"value": "CVE-2023-4785",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 355997,
"published_at": "2023-09-13T17:15:00+00:00"
}