GHSA-38h3-2333-qx47: OpenTelemetry .NET has potential memory exhaustion via unbounded pooled-list sizing in Jaeger exporter conversion path
Summary
OpenTelemetry.Exporter.Jaeger has a memory exhaustion vulnerability where internal pooled lists (reusable memory structures) can grow too large based on big payloads and stay oversized for future use, potentially causing denial of service (making a system unavailable). However, the developers have no plans to fix this because the Jaeger exporter was deprecated in 2023.
Solution / Mitigation
Prefer maintained exporters (for example OpenTelemetry Protocol format (OTLP)) instead of the Jaeger exporter.
Vulnerability Details
EPSS: 0.0%
April 17, 2026
Classification
Affected Vendors
Affected Packages
Related Issues
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Original source: https://github.com/advisories/GHSA-38h3-2333-qx47
First tracked: April 18, 2026 at 02:00 AM
Classified by LLM (prompt v3) · confidence: 75%