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CVE-2023-47108— DoS vulnerability in otelgrpc (uncontrolled resource consumption) due to unbound cardinality metrics

Quick assessment

Affected
open-telemetry opentelemetry-go-contrib
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenTelemetry-Go Contrib是OpenTelemetry开源的一个 OpenTelemetry Go的扩展集合。 OpenTelemetry-Go Contrib 0.46.0之前版本存在安全漏洞，该漏洞源于当发送大量恶意请求时，会导致服务器潜在的内存耗尽。

CVSS 7.5 · High EPSS 1.59% · P75

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2023-47108

Vulnerability Information
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Vulnerability Title
DoS vulnerability in otelgrpc (uncontrolled resource consumption) due to unbound cardinality metrics
Source: CVE Program / CVE List V5
Vulnerability Description
OpenTelemetry-Go Contrib is a collection of third-party packages for OpenTelemetry-Go. Starting in version 0.37.0 and prior to version 0.46.0, the grpc Unary Server Interceptor out of the box adds labels `net.peer.sock.addr` and `net.peer.sock.port` that have unbound cardinality. It leads to the server's potential memory exhaustion when many malicious requests are sent. An attacker can easily flood the peer address and port for requests. Version 0.46.0 contains a fix for this issue. As a workaround to stop being affected, a view removing the attributes can be used. The other possibility is to disable grpc metrics instrumentation by passing `otelgrpc.WithMeterProvider` option with `noop.NewMeterProvider`.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
OpenTelemetry-Go Contrib 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenTelemetry-Go Contrib是OpenTelemetry开源的一个 OpenTelemetry Go的扩展集合。 OpenTelemetry-Go Contrib 0.46.0之前版本存在安全漏洞，该漏洞源于当发送大量恶意请求时，会导致服务器潜在的内存耗尽。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
open-telemetry opentelemetry-go-contrib >= 0.37.0, < 0.46.0 -

II. Public POCs for CVE-2023-47108

# POC Description Source Link Shenlong Link
1 None https://github.com/bahe-msft/govuln-CVE-2023-47108 POC Details
AI-Generated POC Premium
Qwen3.6-35B-A3B · 10703 chars
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III. Intelligence Information for CVE-2023-47108

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Patches & Fixes for CVE-2023-47108 (3)

Vendor Advisories for CVE-2023-47108 (1)

Other References for CVE-2023-47108 (2)

IV. Related Vulnerabilities

Same product: opentelemetry-go-contrib
Same vendor: open-telemetry
Same weakness: CWE-770

V. Comments for CVE-2023-47108

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