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CVE-2026-41483
medium
CVSS 5.9
Vulnerability in OpenTelemetry.Resources.Azure (CVE-2026-41483)
Summary
vulnerability in OpenTelemetry.Resources.Azure (CVE-2026-41483). Risk of unauthorized operations or information disclosure. Exploitable via ``OpenTelemetry.Resources.Azure``. Mitigation: upgrade to `1.15.1-beta.1` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-41483** has been found in OpenTelemetry.Resources.Azure.
Attackers can target a specific entry point like ``OpenTelemetry.Resources.Azure`` over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: 5.9/10.
What to do: upgrade OpenTelemetry.Resources.Azure to **1.15.1-beta.1** or later.
If unsure, ask your IT team or search "OpenTelemetry.Resources.Azure CVE-2026-41483" on the vendor's site.
CVE-2026-41483 (OpenTelemetry.Resources.Azure) — CWE-770 / CVSS v3 5.9
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Attack surface: `OpenTelemetry.Resources.Azure` / `AzureVmMetaDataRequestor` / `OutOfMemoryException` / `HttpClient`
Patched: `1.15.1-beta.1` — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**A vulnerability** (CWE-770) exists in OpenTelemetry.Resources.Azure. Attackers reach the vulnerable code path via ``OpenTelemetry.Resources.Azure`` without authentication.
📍 Affected scope
OpenTelemetry.Resources.Azure — . Attack surface: `OpenTelemetry.Resources.Azure` / `AzureVmMetaDataRequestor` / `OutOfMemoryException` / `HttpClient`.
🔥 Severity
Severity: Medium (CVSS 5.9/10). Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **1.15.1-beta.1**.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'OpenTelemetry.Resources.Azure' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'OpenTelemetry.Resources.Azure' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `OpenTelemetry.Resources.Azure` を grep し、稼働しているサービス・バージョンを把握する。
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6Apply patch patch
Upgrade OpenTelemetry.Resources.Azure to 1.15.1-beta.1ステージング環境で 1.15.1-beta.1 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 3 で見つけた異常検知の続報チェックを含めること。
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7Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
nuget
OpenTelemetry.Resources.Azure
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.1-beta.1"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-41483
- package https://github.com/open-telemetry/opentelemetry-dotnet-contrib
- patch [email protected]
- patch [email protected]
- web https://github.com/open-telemetry/opentelemetry-dotnet-contrib/commit/9d8a364af919f62c088edd641c554cb720198964
- web https://github.com/advisories/GHSA-vc24-j8c5-2vw4