{"id":"GHSA-88hf-wf7h-7w4m","revision":"c1acf82c65df46d5b77a98985092ae4f","records":[{"revision":"c1acf82c65df46d5b77a98985092ae4f","observedAt":"2026-10-23T16:01:25.029+00:00","statement":{"source":"osv","id":"GHSA-88hf-wf7h-7w4m","aliases":["CVE-2026-41310"],"title":"OpenTelemetry's Zipkin remote endpoint cache could grow without bounds and increase memory pressure","description":"### Summary\n\nThe Zipkin exporter remote endpoint cache accepted unbounded key growth derived from span attributes. In high-cardinality scenarios, this could increase process memory usage over time and degrade availability.\n\n### Details\n\n- Introduce a bounded, thread-safe LRU cache for remote endpoints.\n- Enforce fixed maximum size to prevent unbounded growth.\n\n### Impact\n\n- A process using Zipkin export for client/producer spans could experience avoidable memory growth under sustained unique remote endpoint values.\n\n### Resources\n\n[#7081](https://github.com/open-telemetry/opentelemetry-dotnet/pull/7081)","state":0,"publishedAt":"2026-04-28T23:23:28+00:00","modifiedAt":"2026-05-08T19:51:02.960137+00:00","affected":[{"ecosystem":"NuGet","name":"OpenTelemetry.Exporter.Zipkin","ranges":[{"type":"ECOSYSTEM","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.15.3"}]}],"versions":["1.0.0-rc2","1.0.0-rc3","1.0.0-rc4","1.0.1","1.1.0","1.1.0-beta1","1.1.0-beta2","1.1.0-beta3","1.1.0-beta4","1.1.0-rc1","1.10.0","1.11.0","1.11.1","1.11.2","1.12.0","1.13.0","1.13.1","1.14.0","1.15.0","1.15.1","1.15.2","1.2.0","1.2.0-alpha2","1.2.0-alpha3","1.2.0-alpha4","1.2.0-beta1","1.2.0-rc1","1.2.0-rc2","1.2.0-rc3","1.2.0-rc4","1.2.0-rc5","1.3.0","1.3.1","1.3.2","1.4.0","1.5.0","1.5.1","1.6.0","1.7.0","1.8.0","1.8.1","1.9.0"],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-88hf-wf7h-7w4m","https://nvd.nist.gov/vuln/detail/CVE-2026-41310","https://github.com/open-telemetry/opentelemetry-dotnet/pull/7081","https://github.com/open-telemetry/opentelemetry-dotnet/commit/c724f4bd6fd88e9a599af1668bf7af9487155b62","https://github.com/open-telemetry/opentelemetry-dotnet"],"sourceUrl":"https://github.com/advisories/GHSA-88hf-wf7h-7w4m","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-88hf-wf7h-7w4m","identifiers":["GHSA-88hf-wf7h-7w4m","CVE-2026-41310"]},"retained":false,"historicalAffected":[]}],"coverage":[]}