{"answers":{"affected":"2 open source packages ship an affected version, including OpenTelemetry.Exporter.Jaeger. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-41078 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-41078 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-41078 is a medium-severity denial of service vulnerability in open-telemetry OpenTelemetry.Exporter.Jaeger, published on 23 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-41078 and fix it if it is affected.\n\nWhat it is: CVE-2026-41078 is a medium-severity denial of service vulnerability in open-telemetry OpenTelemetry.Exporter.Jaeger, published on 23 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-41078 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- OpenTelemetry.Exporter.Jaeger (NuGet): affected all versions up to 1.6.0-rc.1; no fix listed\n- OpenTelemetry.Exporter.Jaeger (NuGet): affected all versions up to 1.6.0-rc.1; no fix listed\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-41078/ (Markdown: https://insights.sbomify.com/CVE-2026-41078/index.md)","id":"CVE-2026-41078","markdown":"https://insights.sbomify.com/CVE-2026-41078/index.md","name":"CVE-2026-41078","record":{"aliases":["GHSA-38h3-2333-qx47"],"analysis":{"component_type":"library","fix_type":"end_of_life","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"OpenTelemetry .NET library","requires_auth":"none","summary":"Attacker can cause denial of service via memory exhaustion in the deprecated Jaeger exporter by sending high-cardinality telemetry data.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"opentelemetry","vendor":"opentelemetry"}],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"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.","ecosystems":["NuGet"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"OpenTelemetry dotnet: Potential memory exhaustion via unbounded pooled-list sizing in Jaeger exporter conversion path","id":"CVE-2026-41078","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"NuGet","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":2,"n_references":1,"next":{"headline":"OpenPrinting CUPS: Heap out-of-bounds read in SNMP supply-level polling leaks stack memory to authenticated users","id":"CVE-2026-41079"},"packages":[{"ecosystem":"NuGet","fixed":[],"introduced":["0"],"last_affected":["1.6.0-rc.1"],"package":"OpenTelemetry.Exporter.Jaeger","purl":null,"source":"GHSA-38h3-2333-qx47"},{"ecosystem":"NuGet","fixed":[],"introduced":["0"],"last_affected":["1.6.0-rc.1"],"package":"OpenTelemetry.Exporter.Jaeger","purl":"pkg:nuget/OpenTelemetry.Exporter.Jaeger","source":"GHSA-38h3-2333-qx47"}],"prev":{"headline":"RT: LDAP authentication bypass via empty password","id":"CVE-2026-41076"},"products":["OpenTelemetry.Exporter.Jaeger","opentelemetry-dotnet"],"published":"2026-04-23","related":[{"cvss_score":7.5,"headline":"OpenTelemetry-Go multi-value `baggage` header extraction causes excessive allocations (remote dos amplification)","id":"CVE-2026-29181","kev_date_added":null,"published":"2026-04-07"},{"cvss_score":7.5,"headline":"DoS vulnerability in otelgrpc (uncontrolled resource consumption) due to unbound cardinality metrics","id":"CVE-2023-47108","kev_date_added":null,"published":"2023-11-10"},{"cvss_score":7.5,"headline":"OpenTelemetry-Go Contrib has DoS vulnerability in otelhttp due to unbound cardinality metrics","id":"CVE-2023-45142","kev_date_added":null,"published":"2023-10-12"},{"cvss_score":7.5,"headline":"opentelemetry-instrumentation Denial of Service vulnerability due to unbound cardinality metrics","id":"CVE-2023-43810","kev_date_added":null,"published":"2023-10-06"},{"cvss_score":7.3,"headline":"opentelemetry-go: BSD kenv command not using absolute path enables PATH hijacking","id":"CVE-2026-39883","kev_date_added":null,"published":"2026-04-08"},{"cvss_score":7,"headline":"OpenTelemetry-Go Affected by Arbitrary Code Execution via PATH Hijacking","id":"CVE-2026-24051","kev_date_added":null,"published":"2026-02-02"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-23","vendors":["open-telemetry"]},"summary":"Attacker can cause denial of service via memory exhaustion in the deprecated Jaeger exporter by sending high-cardinality telemetry data.","url":"https://insights.sbomify.com/CVE-2026-41078/"}