{"id":"CVE-2026-41078","revision":"745f390a14c84c60ae6bfc55f8b3d909","records":[{"revision":"745f390a14c84c60ae6bfc55f8b3d909","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-41078","aliases":[],"title":"OpenTelemetry dotnet: Potential memory exhaustion via unbounded pooled-list sizing in Jaeger exporter conversion path","description":"OpenTelemetry dotnet is a dotnet telemetry framework. In 1.6.0-rc.1 and earlier, OpenTelemetry.Exporter.Jaeger may allow sustained memory pressure when the internal pooled-list sizing grows based on a large observed span/tag set and that enlarged size is reused for subsequent allocations. Under high-cardinality or attacker-influenced telemetry input, this can increase memory consumption and potentially cause denial of service. There is no plan to fix this issue as OpenTelemetry.Exporter.Jaeger was deprecated in 2023.","state":0,"publishedAt":"2026-04-23T18:05:41.367+00:00","modifiedAt":"2026-04-23T18:52:26.466+00:00","affected":[{"ecosystem":"Vendor product","name":"opentelemetry-dotnet","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"open-telemetry\",\n                    \"product\": \"opentelemetry-dotnet\",\n                    \"versions\": [\n                        {\n                            \"version\": \"<= 1.6.0-rc.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"OpenTelemetry.Exporter.Jaeger","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"open-telemetry\",\n                    \"product\": \"OpenTelemetry.Exporter.Jaeger\",\n                    \"versions\": [\n                        {\n                            \"version\": \"<= 1.6.0-rc.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","score":5.9,"severity":"MEDIUM"}],"references":["https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-38h3-2333-qx47"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-41078","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-41078","identifiers":["CVE-2026-41078"]},"retained":false,"historicalAffected":[]}],"coverage":[]}