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CVE-2026-41433— OpenTelemetry eBPF Instrumentation: Privileged Java agent injection allows arbitrary host file overwrite via untrusted TMPDIR

Quick assessment

Affected
open-telemetry opentelemetry-ebpf-instrumentation
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 eBPF Instrumentation是OpenTelemetry开源的一个基于eBPF的轻量级遥测数据采集工具。 OpenTelemetry eBPF Instrumentation 0.4.0版本至0.8.0之前版本存在路径遍历漏洞，该漏洞源于Java代理注入路径存在缺陷，允许本地攻击者控制Java工作负载在启用Java注入且OBI以高权限运行时覆盖任意主机文件。

CVSS 8.4 · High EPSS 0.22% · P11
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I. Basic Information for CVE-2026-41433

Vulnerability Information
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Vulnerability Title
OpenTelemetry eBPF Instrumentation: Privileged Java agent injection allows arbitrary host file overwrite via untrusted TMPDIR
Source: CVE Program / CVE List V5
Vulnerability Description
OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. From 0.4.0 to before 0.8.0, a flaw in the Java agent injection path allows a local attacker controlling a Java workload to overwrite arbitrary host files when Java injection is enabled and OBI is running with elevated privileges. The injector trusted TMPDIR from the target process and used unsafe file creation semantics, enabling both filesystem boundary escape and symlink-based file clobbering. This vulnerability is fixed in 0.8.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
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
Vulnerability Title
OpenTelemetry eBPF Instrumentation 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenTelemetry eBPF Instrumentation是OpenTelemetry开源的一个基于eBPF的轻量级遥测数据采集工具。 OpenTelemetry eBPF Instrumentation 0.4.0版本至0.8.0之前版本存在路径遍历漏洞，该漏洞源于Java代理注入路径存在缺陷，允许本地攻击者控制Java工作负载在启用Java注入且OBI以高权限运行时覆盖任意主机文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
open-telemetry opentelemetry-ebpf-instrumentation >= 0.4.0, < 0.8.0 -

II. Public POCs for CVE-2026-41433

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III. Intelligence Information for CVE-2026-41433

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Vendor Advisories for CVE-2026-41433 (1)

Vendor Pages for CVE-2026-41433 (1)

IV. Related Vulnerabilities

Same product: opentelemetry-ebpf-instrumentation
Same vendor: open-telemetry
Same weakness: CWE-22

V. Comments for CVE-2026-41433

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