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CVE-2026-41433

Opentelemetry Ebpf Instrumentation path traversal

8.4 HIGHPublic exploitEPSS 0.22%
  1. Published24 Apr 2026

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.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityNone
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H

Affected products

Opentelemetry Ebpf Instrumentation≥ 0.4.0 < 0.8.0

Remediation

Fixed in
Opentelemetry Ebpf Instrumentation≥ 0.8.0

References

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Frequently asked

Is CVE-2026-41433 being actively exploited?

CVE-2026-41433 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.22%.

How severe is CVE-2026-41433?

CVE-2026-41433 has a CVSS 3.1 base score of 8.4, rated high. EPSS estimates a 0.22% probability of exploitation.

Which products are affected by CVE-2026-41433?

Affected products include Opentelemetry Ebpf Instrumentation.

How do I fix CVE-2026-41433?

Upgrade affected software to a fixed version, for example Opentelemetry Ebpf Instrumentation 0.8.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-41433 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.