Resource exhaustion in Open-telemetry Opentelemetry-dotnet
CVE-2026-41310
OpenTelemetry.Exporter.Zipkin is the .NET Zipkin exporter for OpenTelemetry. In versions 1.15.2 and earlier, the Zipkin exporter remote endpoint cache accepts unbounded key growth derived from span attributes. In high-cardinality scenarios…
Vulnerability class: DoS (Denial of Service)
EPSS: 0.000 (3.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Open-telemetry Opentelemetry-dotnet — versions <= 1.15.2
- Opentelemetry Opentelemetry.exporter.zipkin
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Issue Tracking)
Frequently asked questions
- What is CVE-2026-41310?
- CVE-2026-41310 is a medium-severity vulnerability in Open-telemetry Opentelemetry-dotnet, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2026-05-06.
- How severe is CVE-2026-41310?
- Medium severity. CVSS v3 base score is 5.3 out of 10.