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CVE-2026-112006— OpenTelemetry opentelemetry-exporter-otlp-proto-http 1.5.0 before 1.45.0 Improper Certificate Validation

Quick assessment

Affected
OpenTelemetry opentelemetry-exporter-otlp-proto-http
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenTelemetry 的 组件在 1.5.0 至 1.45.0 版本之间存在证书验证不当的漏洞：当环境变量 被设置为空字符串时，该漏洞会导致 TLS 验证被禁用。中间人攻击者可借此伪装成采集器（collector），从而读取或篡改导出的追踪（traces）、指标（metrics）和日志（logs），其中包括通过 环境变量配置的认证标头。

CVSS 6.5 · Medium EPSS 0.21% · P11

Possible ATT&CK Techniques 2 AI

T1572 · Protocol Tunneling T1572.002

Affected Version Matrix 1

VendorProduct Version RangeStatus
OpenTelemetry opentelemetry-exporter-otlp-proto-http 1.5.0< 1.45.0 affected
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I. Basic Information for CVE-2026-112006

Vulnerability Information
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Vulnerability Title
OpenTelemetry opentelemetry-exporter-otlp-proto-http 1.5.0 before 1.45.0 Improper Certificate Validation
Source: CVE Program / CVE List V5
Vulnerability Description
OpenTelemetry opentelemetry-exporter-otlp-proto-http 1.5.0 before 1.45.0 contains an improper certificate validation vulnerability that disables TLS verification when OTEL_EXPORTER_OTLP_CERTIFICATE variables are empty strings. Man-in-the-middle attackers can impersonate the collector to read or alter exported traces, metrics, and logs, including authentication headers from OTEL_EXPORTER_OTLP_HEADERS.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenTelemetry opentelemetry-exporter-otlp-proto-http 1.5.0 ~ 1.45.0 -

II. Public POCs for CVE-2026-112006

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-112006

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Patches & Fixes for CVE-2026-112006 (1)

Vendor Pages for CVE-2026-112006 (2)

IV. Related Vulnerabilities

Same weakness: CWE-295

V. Comments for CVE-2026-112006

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