Memory Allocation with Excessive Size Value Affecting opentelemetry.exporter.opentelemetryprotocol package, versions [1.13.1,1.15.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DOTNET-OPENTELEMETRYEXPORTEROPENTELEMETRYPROTOCOL-16189070
- published24 Apr 2026
- disclosed24 Apr 2026
- creditOleh Konko
Introduced: 24 Apr 2026
NewCVE-2026-40182 (opens in a new tab)How to fix?
Upgrade OpenTelemetry.Exporter.OpenTelemetryProtocol to version 1.15.2 or higher.
Overview
OpenTelemetry.Exporter.OpenTelemetryProtocol is an OTLP Exporter for OpenTelemetry .NET.
Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value via the OTLP exporter. An attacker can cause memory exhaustion by configuring a malicious back-end or intercepting network traffic to return extremely large HTTP response bodies, which are read into memory without size limitation.