How severe is CVE-2026-41433?

CVE-2026-41433 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2026-41433 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-41433?

CVE-2026-41433 affects Opentelemetry Opentelemetry Ebpf Instrumentation. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-41433?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-41433 have an EU (EUVD) identifier?

Yes. CVE-2026-41433 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25620.

When was CVE-2026-41433 published?

CVE-2026-41433 was published on 2026-04-24 and last updated on 2026-06-17.

CVE-2026-41433

CVE-2026-41433 is a high-severity vulnerability in Opentelemetry Opentelemetry Ebpf Instrumentation with a CVSS 3.x base score of 8.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 8.4)
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-25620
Weakness: CWE-22
Affected product: Opentelemetry Opentelemetry Ebpf Instrumentation
Published: 2026-04-24
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-41433?: 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.
How severe is CVE-2026-41433?: CVE-2026-41433 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2026-41433 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-41433?: CVE-2026-41433 affects Opentelemetry Opentelemetry Ebpf Instrumentation. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-41433?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-41433 have an EU (EUVD) identifier?: Yes. CVE-2026-41433 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25620.
When was CVE-2026-41433 published?: CVE-2026-41433 was published on 2026-04-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:opentelemetry:opentelemetry_ebpf_instrumentation:*:*:*:*:*:go:*:*

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