Vulnerability in OpenTelemetry.Exporter.Zipkin (CVE-2026-41310)
Summary
Vulnerability in OpenTelemetry.Exporter.Zipkin (CVE-2026-41310). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 1.15.3 or later.
Original description
The description as published by the source.
Summary
The Zipkin exporter remote endpoint cache accepted unbounded key growth derived from span attributes. In high-cardinality scenarios, this could increase process memory usage over time and degrade availability.
Details
- Introduce a bounded, thread-safe LRU cache for remote endpoints.
- Enforce fixed maximum size to prevent unbounded growth.
Impact
- A process using Zipkin export for client/producer spans could experience avoidable memory growth under sustained unique remote endpoint values.
Resources
Source: GitHub Security Advisories (Global) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-41310 has been found in OpenTelemetry.Exporter.Zipkin.
Risk of unauthorized operations or information disclosure. CVSS score: 5.3/10.
What to do: upgrade OpenTelemetry.Exporter.Zipkin to 1.15.3 or later.
If unsure, ask your IT team or search "OpenTelemetry.Exporter.Zipkin CVE-2026-41310" on the vendor's site.
CVE-2026-41310 (OpenTelemetry.Exporter.Zipkin) — CWE-400 / CVSS v3 5.3
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 1.15.3 — 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.
A vulnerability (CWE-400) exists in OpenTelemetry.Exporter.Zipkin.
Check the vendor advisory for the affected versions of OpenTelemetry.Exporter.Zipkin.
Severity: Medium (CVSS 5.3/10). Risk of unauthorized operations or information disclosure.
Update to 1.15.3.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'OpenTelemetry.Exporter.Zipkin' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'OpenTelemetry.Exporter.Zipkin' . | 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.Exporter.Zipkinを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade OpenTelemetry.Exporter.Zipkin to 1.15.3ステージング環境で 1.15.3 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を含めること。
-
3Post-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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory nvd.nist.gov
- package github.com
- web github.com
- web github.com
- web github.com
- web github.com