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Vulnerabilities

Vulnerability · CVE-2026-41310

OpenTelemetry.Exporter.Zipkin is the .NET Zipkin exporter for OpenTelemetry.

Published May 6, 2026 · catalog updated Jun 17, 2026 · OpenTelemetry.Exporter.Zipkin is the .NET

Check if you run it

No confirmed exploitation is on record for CVE-2026-41310. EPSS is 0.40%. Act only if a listed version of OpenTelemetry.Exporter.Zipkin is the .NET is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (OpenTelemetry.Exporter.Zipkin is the .NET).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.40%
Remediation
Version ranges on file
Affected products
cpe opentelemetry/opentelemetry.exporter.zipkin · stated opentelemetry.exporter.zipkin

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, a process using Zipkin export for client or producer spans could experience avoidable memory growth under sustained unique remote endpoint values, increasing process memory usage over time and degrading availability. This issue is fixed in version 1.15.3, which introduces a bounded, thread-safe LRU cache for remote endpoints with a fixed maximum size.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe opentelemetry/opentelemetry.exporter.zipkinversion unspecified
  • stated opentelemetry.exporter.zipkin<= 1.15.2

How to fix CVE-2026-41310

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-41310. EPSS is 0.40%. Act only if a listed version of OpenTelemetry.Exporter.Zipkin is the .NET is installed.

Which versions are affected?

Compare what you have installed with <= 1.15.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-400: Uncontrolled Resource Consumption; CWE-770: Allocation of Resources Without Limits or Throttling. EPSS 0.40%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 6, 2026 · NIST NVD

    Detected

    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, a process using Zipkin export for client or producer spans could experience avoidable memory growth under sustained unique remote endpoint values, increasing p

  2. Jun 17, 2026 · NIST NVD

    Updated

    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, a process using Zipkin export for client or producer spans could experience avoidable memory growth under sustained unique remote endpoint values, increasing p

Sources

  • CVE.orgVulnerability recordCVE-2026-41310

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-41310

    30-day exploitation probability 0.4%

    first.org
  • NIST NVDVulnerability recordCVE-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, a process using Zipkin export for clien

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.