CVE-2026-41433
High
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.
SeverityHigh
CVSS8.4
Exploit probability—
Product
Opentelemetry Ebpf Instrumentation
PublishedApr 24, 2026
First seenApr 24, 2026
Weakness typeCWE-22Path traversalCWE-59Improper link resolution
How to fix
Update
- opentelemetry opentelemetry_ebpf_instrumentation0.8.0 or later
- go.opentelemetry.io/obi0.8.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| opentelemetry opentelemetry_ebpf_instrumentation | 0.4.0 ≤ v < 0.8.0 | 0.8.0 |
| go.opentelemetry.io/obiGo | 0.4.0 ≤ v < 0.8.0 | 0.8.0 |
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