{"id":"EUVD-2026-25266","revision":"f95875e37c2d4de18d4297ce1a8a4259","records":[{"revision":"f95875e37c2d4de18d4297ce1a8a4259","observedAt":"2026-11-01T06:15:31.568+00:00","statement":{"source":"euvd","id":"EUVD-2026-25266","aliases":["CVE-2026-40182"],"title":"OpenTelemetry dotnet is a dotnet telemetry framework. From 1.13.1 to before 1.15.2, When exporting telemetry to a back-end/collector over gRPC or HTTP using OpenTelemetry Protocol format (OTLP), if the request results in a unsuccessful requ…","description":"OpenTelemetry dotnet is a dotnet telemetry framework. From 1.13.1 to before 1.15.2, When exporting telemetry to a back-end/collector over gRPC or HTTP using OpenTelemetry Protocol format (OTLP), if the request results in a unsuccessful request (i.e. HTTP 4xx or 5xx), the response is read into memory with no upper-bound on the number of bytes consumed. This could cause memory exhaustion in the consuming application if the configured back-end/collector endpoint is attacker-controlled (or a network attacker can MitM the connection) and an extremely large body is returned by the response. This vulnerability is fixed in 1.15.2.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","score":5.3,"severity":null}],"references":["https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-q834-8qmm-v933","https://github.com/open-telemetry/opentelemetry-dotnet/pull/6564","https://github.com/open-telemetry/opentelemetry-dotnet/pull/7017","https://github.com/open-telemetry/opentelemetry-proto/pull/781"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-25266","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Apr 23, 2026, 5:51:34 PM","dateUpdated":"Apr 23, 2026, 6:38:57 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-25266","identifiers":["EUVD-2026-25266","CVE-2026-40182"]},"retained":false,"historicalAffected":[]}],"coverage":[]}