CVE-2026-40894

{"id": "CVE-2026-40894", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-40894", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-23T19:22:40.530419Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "open-telemetry", "product": "opentelemetry-dotnet", "versions": [{"status": "affected", "version": ">= 0.5.0-beta.2, < 1.15.3"}]}, {"vendor": "open-telemetry", "product": "OpenTelemetry.Api", "versions": [{"status": "affected", "version": ">= 0.5.0-beta.2, < 1.15.3"}]}, {"vendor": "open-telemetry", "product": "OpenTelemetry.Extensions.Propagators", "versions": [{"status": "affected", "version": ">= 1.3.1, < 1.15.3"}]}]}], "published": "2026-04-23T19:17:28.810", "references": [{"url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/1048", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/3244", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/3309", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/533", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/7061", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-g94r-2vxg-569j", "tags": ["Mitigation", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-789"}]}], "descriptions": [{"lang": "en", "value": "OpenTelemetry dotnet is a dotnet telemetry framework. In OpenTelemetry.Api 0.5.0-beta.2 to 1.15.2 and OpenTelemetry.Extensions.Propagators 1.3.1 to 1.15.2, The implementation details of the baggage, B3 and Jaeger processing code in the OpenTelemetry.Api and OpenTelemetry.Extensions.Propagators NuGet packages can allocate excessive memory when parsing which could create a potential denial of service (DoS) in the consuming application. This vulnerability is fixed in 1.15.3."}, {"lang": "es", "value": "OpenTelemetry dotnet es un framework de telemetr\u00eda dotnet. En OpenTelemetry.Api 0.5.0-beta.2 a 1.15.2 y OpenTelemetry.Extensions.Propagators 1.3.1 a 1.15.2, los detalles de implementaci\u00f3n del c\u00f3digo de procesamiento de baggage, B3 y Jaeger en los paquetes NuGet OpenTelemetry.Api y OpenTelemetry.Extensions.Propagators pueden asignar memoria excesiva al analizar, lo que podr\u00eda crear una potencial denegaci\u00f3n de servicio (DoS) en la aplicaci\u00f3n consumidora. Esta vulnerabilidad est\u00e1 corregida en 1.15.3."}], "lastModified": "2026-10-26T22:10:00.163", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:opentelemetry:opentelemetry:*:*:*:*:*:.net:*:*", "vulnerable": true, "matchCriteriaId": "7CF8EB09-F7C5-49FA-BE45-15C9D6ACAE68", "versionEndExcluding": "1.15.3", "versionStartIncluding": "0.5.0"}, {"criteria": "cpe:2.3:a:opentelemetry:opentelemetry.api:*:*:*:*:*:.net:*:*", "vulnerable": true, "matchCriteriaId": "F4494846-0F47-4868-8315-76F82BA431CA", "versionEndExcluding": "1.15.3", "versionStartIncluding": "0.5.0"}, {"criteria": "cpe:2.3:a:opentelemetry:opentelemetry.extensions.propagators:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FD34268F-5D62-4ACF-9E83-22DA39B5B7F3", "versionEndExcluding": "1.15.3", "versionStartExcluding": "1.3.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}