CVE-2023-47108

7.5 HIGH
Published: November 10, 2023 Modified: October 28, 2025

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`.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/open-telemetry/opentelemetry-go-contrib/pull/4322
Source: security-advisories@github.com
Issue Tracking Patch
https://github.com/open-telemetry/opentelemetry-go-contrib/pull/4322
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Patch
https://pkg.go.dev/go.opentelemetry.io/otel/metric/noop#NewMeterProvider
Source: af854a3a-2127-422b-91ae-364da2661108
Product

13 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
4.3%
88th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

opentelemetry