CoreCVE
Back

HIGH

DoS vulnerability for high cardinality metrics in opentelemetry-go-contrib

Published Feb 8, 2023

Description

opentelemetry-go-contrib is a collection of extensions for OpenTelemetry-Go. The v0.38.0 release of `go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp` uses the `httpconv.ServerRequest` function to annotate metric measurements for the `http.server.request_content_length`, `http.server.response_content_length`, and `http.server.duration` instruments. The `ServerRequest` function sets the `http.target` attribute value to be the whole request URI (including the query string)[^1]. The metric instruments do not "forget" previous measurement attributes when `cumulative` temporality is used, this means the cardinality of the measurements allocated is directly correlated with the unique URIs handled. If the query string is constantly random, this will result in a constant increase in memory allocation that can be used in a denial-of-service attack. This issue has been addressed in version 0.39.0. Users are advised to upgrade. There are no known workarounds for this issue.

Affected products

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-400

Uncontrolled Resource Consumption

References (8)

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED
Assigner GitHub_M
Published Feb 8, 2023
Updated Mar 10, 2025
Reserved Feb 3, 2023
Link CVE-2023-25151

CISA Vulnrichment

Updated Mar 10, 2025

NVD

Status Modified
Modified Jun 17, 2026
Link CVE-2023-25151

Red Hat

Severity Important
Public date Feb 8, 2023
Bugzilla 2168999
Link CVE-2023-25151

ENISA EUVD

Assigner GitHub_M
Published Feb 8, 2023
Updated Mar 10, 2025
Link EUVD-2023-0632

GitHub

Link GHSA-5R5M-65GX-7VRH