Connect your agent
AdvisoriesCriticalCheck your lockfilePluginHow it worksPricing Connect your agent

Advisory record · GHSA-8785-wc3w-h8q6

OpenTelemetry .NET has Denial of Service (DoS) Vulnerability in API Package

CVSS 7.5 HighEPSS 0.0051 · 43rd percentile

Published by the GitHub Advisory Database at 5 Mar 2025, 18:15 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
OpenTelemetry.ApiNuGet>=1.11.0, <1.11.2 || =1.10.0 || =1.10.0-beta.1 || =1.10.0-rc.1 || =1.11.0-rc.11.11.2
Identifiers
GHSA-8785-wc3w-h8q6 · CVE-2025-27513
Weakness (CWE)
CWE-770
Tags
Published
5 Mar 2025
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

OpenTelemetry.Api versions 1.11.0 before 1.11.2 are vulnerable to a denial of service caused by high CPU usage when requests include tracestate and traceparent headers. An attacker who can send HTTP requests to an affected application can exhaust its CPU, causing slowdowns or downtime, even if the application does not use trace context propagation. Upgrade OpenTelemetry.Api to 1.11.2, which is the fixed version.

Written 9 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0051, the 43rd percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:21 UTC First seen by agentprime
  2. 31 Oct 2026, 15:21 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.