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CVE-2026-81870— OpenTelemetry-Go: Exporter config logging may leak endpoint URLs in info logs

一分钟漏洞结论

影响对象
open-telemetry opentelemetry-go
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

OpenTelemetry-Go is the Go implementation of OpenTelemetry. From version 1.5.0 to 1.44.0, sdk/trace.NewTracerProvider emits a TracerProvider created internal Info-level diagnostic event whose MarshalLog implementations recursively include span processor, expor

CVSS 2.0 · Low
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一、 漏洞 CVE-2026-81870 基础信息

漏洞信息

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Vulnerability Title
OpenTelemetry-Go: Exporter config logging may leak endpoint URLs in info logs
来源: CVE Program / CVE List V5
Vulnerability Description
OpenTelemetry-Go is the Go implementation of OpenTelemetry. From version 1.5.0 to 1.44.0, sdk/trace.NewTracerProvider emits a TracerProvider created internal Info-level diagnostic event whose MarshalLog implementations recursively include span processor, exporter, and client configuration. Applications that call otel.SetLogger to enable OpenTelemetry internal Info logging can therefore record OTLP gRPC and HTTP collector endpoints, the OTLP HTTP Insecure flag, and complete Zipkin collector URLs. A person or system with access to those logs can learn internal collector topology and can recover credentials or tokens embedded in Zipkin URL user information or query strings. The default OpenTelemetry logger does not emit the event, and this path does not log OTLP authentication headers, TLS key material, or span payloads. This issue is fixed in version 1.45.0.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
来源: CVE Program / CVE List V5
Vulnerability Type
信息暴露
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
open-telemetry opentelemetry-go >= 1.5.0, < 1.45.0 -

二、漏洞 CVE-2026-81870 的公开POC

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三、漏洞 CVE-2026-81870 的情报信息

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CVE-2026-81870 补丁与修复 (2)

CVE-2026-81870 其他参考 (3)

同批安全公告 · open-telemetry · 2026-09-16 · 共 4 条

CVE-2026-81872 6.3 MEDIUM OpenTelemetry-Go 批量处理器忙等待漏洞
CVE-2026-81871 6.3 MEDIUM OpenTelemetry-Go gRPC导出器TLS证书绕过漏洞
CVE-2026-81869 5.1 MEDIUM OpenTelemetry-Go 属性截断绕过漏洞

IV. Related Vulnerabilities

Same product: opentelemetry-go
Same vendor: open-telemetry
Same weakness: CWE-200

V. Comments for CVE-2026-81870

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