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CVE-2026-47256— OpenTelemetry: Path traversal in Sentry exporter via attacker-controlled service.name reaches privileged Sentry API endpoints with operator bearer token

Quick assessment

Affected
open-telemetry opentelemetry-collector-contrib
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.

以下是该漏洞描述的中文翻译： OpenTelemetry（又称 OTel）是一个厂商中立的开源可观测性框架，用于对遥测数据（如追踪、指标和日志）进行插桩、生成、收集和导出。 在 0.154.0 版本之前，Sentry 导出器通过 中的 和 函数，读取由远程 OTLP 发送端控制的 资源属性；随后在 中，将原始的项目 slug 传递给 和 ，并在运行时未通过 中的 应用 进行校验，直接将其插入到 Sentry API URL 中。 特殊字符可能导致预期的路径后缀在所有部署中变为查询参数，或在 Sentry 部署规范化

CVSS 5.3 · Medium

Possible ATT&CK Techniques 1 AI

T1039 · Data from Network Shared Drive

Affected Version Matrix 2

VendorProduct Version RangeStatus
open-telemetry github.com/open-telemetry/opentelemetry-collector-contrib/exporter/sentryexporter < 0.154.0 affected
open-telemetry opentelemetry-collector-contrib < 0.154.0 affected
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I. Basic Information for CVE-2026-47256

Vulnerability Information
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Vulnerability Title
OpenTelemetry: Path traversal in Sentry exporter via attacker-controlled service.name reaches privileged Sentry API endpoints with operator bearer token
Source: CVE Program / CVE List V5
Vulnerability Description
OpenTelemetry, also known as OTel, is a vendor-neutral open source Observability framework for instrumenting, generating, collecting, and exporting telemetry data such as traces, metrics, and logs. Prior to 0.154.0, the Sentry exporter reads the remote OTLP sender-controlled service.name resource attribute in exporter/sentryexporter/sentry_exporter.go through extractProjectSlug and getOrCreateProjectEndpoint, passes the raw project slug to GetOTLPEndpoints and GetProjectKeys in exporter/sentryexporter/sentry_client.go, and interpolates it into a Sentry API URL without applying projectSlugRegexp through validateRoutingConfig at runtime in exporter/sentryexporter/config.go. Special characters can turn the expected path suffix into query data in all deployments or introduce slash and dot segments that traverse paths when the Sentry deployment normalizes them, while the Collector attaches its operator-configured bearer token to the request. A successful request can reach token-authorized administrative, organization, member, or key endpoints within the configured Sentry organization, and an attacker-controlled project slug can redirect subsequently exported telemetry. Sentry token middleware prevents cross-organization access. This issue is fixed in version 0.154.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
open-telemetry opentelemetry-collector-contrib < 0.154.0 -
open-telemetry github.com/open-telemetry/opentelemetry-collector-contrib/exporter/sentryexporter < 0.154.0 -

II. Public POCs for CVE-2026-47256

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III. Intelligence Information for CVE-2026-47256

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Vendor Advisories for CVE-2026-47256 (1)

Vendor Pages for CVE-2026-47256 (1)

IV. Related Vulnerabilities

Same product: opentelemetry-collector-contrib
Same vendor: open-telemetry
Same weakness: CWE-22

V. Comments for CVE-2026-47256

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