CVE-2026-41310
MEDIUM EPSS 22.8%
Published May 6, 20261mo ago · Modified Jun 17, 20261w ago
5.3 CVSS 3.1
Published May 6, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago
Description
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability Low
Threat Intelligence
EPSS Exploit Probability
22.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 2
CWE-400 Uncontrolled Resource Consumption Resource Mgmt
CWE-770
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| opentelemetry | opentelemetry.exporter.zipkin | * | <1.15.3 |
References 2
- github.com https://github.com/open-telemetry/opentelemetry-dotnet/pull/7081
- github.com https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-88hf-wf7h-7w4m
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.