{"id":"CVE-2026-41078","sourceIdentifier":"security-advisories@github.com","published":"2026-04-23T19:17:28.950","lastModified":"2026-06-17T10:46:08.023","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"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."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"open-telemetry","product":"opentelemetry-dotnet","versions":[{"version":"<= 1.6.0-rc.1","status":"affected"}]},{"vendor":"open-telemetry","product":"OpenTelemetry.Exporter.Jaeger","versions":[{"version":"<= 1.6.0-rc.1","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":5.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.2,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-04-23T18:52:04.471326Z","id":"CVE-2026-41078","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-770"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:opentelemetry:opentelemetry:*:*:*:*:*:.net:*:*","versionEndExcluding":"1.6.0","matchCriteriaId":"56927593-8DEA-46DF-99FB-150F00796ED8"},{"vulnerable":true,"criteria":"cpe:2.3:a:opentelemetry:opentelemetry:1.6.0:alpha1:*:*:*:.net:*:*","matchCriteriaId":"13631A96-4D58-461F-9264-64DBD3BAF413"},{"vulnerable":true,"criteria":"cpe:2.3:a:opentelemetry:opentelemetry:1.6.0:beta1:*:*:*:.net:*:*","matchCriteriaId":"7D986355-87A6-4E57-9459-12F757E5773A"},{"vulnerable":true,"criteria":"cpe:2.3:a:opentelemetry:opentelemetry:1.6.0:beta2:*:*:*:.net:*:*","matchCriteriaId":"48A81080-CF53-4EA9-A98B-55F7016D8D72"},{"vulnerable":true,"criteria":"cpe:2.3:a:opentelemetry:opentelemetry:1.6.0:beta3:*:*:*:.net:*:*","matchCriteriaId":"624E213B-E94A-4A6E-AD8F-45F0007B6D5A"},{"vulnerable":true,"criteria":"cpe:2.3:a:opentelemetry:opentelemetry:1.6.0:rc1:*:*:*:.net:*:*","matchCriteriaId":"AD841242-43F8-4A7D-B9DC-9BFE0953C675"}]}]}],"references":[{"url":"https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-38h3-2333-qx47","source":"security-advisories@github.com","tags":["Vendor Advisory"]}]}