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CVE-2026-44213

The OpenTelemetry.Exporter.Instana exports telemetry to Instana backend. Prior to 1.1.0, the OpenTelemetry.Exporter.Instana NuGet package does not validate HTTPS/TLS certificates are valid when sending telemetry to a configured Instana back-end when a proxy is configured using the INSTANA_ENDPOINT_PROXY environment variable. If a network attacker can Man-in-the-Middle (MitM) the proxy connection, all OpenTelemetry telemetry data and the Instana API key are exposed to the attacker. This vulnerabi
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1fea5b2e4e7b2306c40f4ef2fc7497f922fff247eeb27c1e8aca1a40f61ab106
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"opentelemetry-dotnet-contrib","vendor":"open-telemetry","versions":[{"status":"affected","version":"< 1.1.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5176385875eb99a4b2d969c148ddb25d48e835728ca057291c4afa12eb29d32f · sha256:9795f6cfae3f7181… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5176385875eb99a4b2d969c148ddb25d48e835728ca057291c4afa12eb29d32f · sha256:9795f6cfae3f7181… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-295","description":"CWE-295: Improper Certificate Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5176385875eb99a4b2d969c148ddb25d48e835728ca057291c4afa12eb29d32f · sha256:9795f6cfae3f7181… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/open-telemetry/opentelemetry-dotnet-contrib/security/advisories/GHSA-wfr5-454p-mjc2","tags":["x_refsource_CONFIRM"],"url":"https://github.com/open-telemetry/opentelemetry-dotnet-contrib/security/advisories/GHSA-wfr5-454p-mjc2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5176385875eb99a4b2d969c148ddb25d48e835728ca057291c4afa12eb29d32f · sha256:9795f6cfae3f7181… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/open-telemetry/opentelemetry-dotnet-contrib/security/advisories/GHSA-wfr5-454p-mjc2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5176385875eb99a4b2d969c148ddb25d48e835728ca057291c4afa12eb29d32f · sha256:9795f6cfae3f7181… · /containers/adp/0/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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