CVE-2026-41433 Details
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.
A vulnerability exists in OpenTelemetry eBPF Instrumentation versions 0.4.0 prior to 0.8.0, allowing local attackers to overwrite arbitrary host files. This issue arises when the Java agent injection is enabled and the OpenTelemetry Binary Instrumentation (OBI) is running with elevated privileges. The vulnerability is caused by the injector trusting the TMPDIR environment variable from the target process, which can be manipulated to escape filesystem boundaries and exploit symlink-based file clobbering. The flaw is fixed in version 0.8.0.
Users should upgrade to OpenTelemetry eBPF Instrumentation version 0.8.0, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 25, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-8gmg-3w2q-65f4 | CISA-ADP | ExploitThird Party Advisory |
| https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/releases/tag/v0.8.0 | [email protected] | Release Notes |
| https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-8gmg-3w2q-65f4 | [email protected] | ExploitThird Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
| CWE-59 | Improper Link Resolution Before File Access ('Link Following') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| opentelemetry opentelemetry ebpf instrumentation | >= 0.4.0, < 0.8.0 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 14, 2026 | Initial Analysis | [email protected] |
| Apr 25, 2026 | CVE Modified | CISA-ADP |
| Apr 24, 2026 | New CVE Received | [email protected] |