How severe is CVE-2026-45683?

CVE-2026-45683 has a CVSS 3.x base score of 3.8, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-45683 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-45683?

CVE-2026-45683 affects Opentelemetry Ebpf Instrumentation. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-45683?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-45683 have an EU (EUVD) identifier?

Yes. CVE-2026-45683 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33956.

When was CVE-2026-45683 published?

CVE-2026-45683 was published on 2026-06-02 and last updated on 2026-06-17.

CVE-2026-45683

CVE-2026-45683 is a low-severity vulnerability in Opentelemetry Ebpf Instrumentation with a CVSS 3.x base score of 3.8. 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-127.

Key facts

Severity: Low (CVSS 3.x base score 3.8)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-33956
Weakness: CWE-127
Affected product: Opentelemetry Ebpf Instrumentation
Published: 2026-06-02
Last modified: 2026-06-17

Description

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, the Java TLS ioctl probe reads user-controlled ioctl pointers with bpf_probe_read instead of bpf_probe_read_user. An instrumented local process can therefore point OBI at kernel memory and cause that memory to be copied into telemetry. This issue has been patched in version 0.9.0.

Frequently asked questions

What is CVE-2026-45683?: OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, the Java TLS ioctl probe reads user-controlled ioctl pointers with bpf_probe_read instead of bpf_probe_read_user. An instrumented local process can therefore point OBI at kernel memory and cause that memory to be copied into telemetry. This issue has been patched in version 0.9.0.
How severe is CVE-2026-45683?: CVE-2026-45683 has a CVSS 3.x base score of 3.8, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-45683 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-45683?: CVE-2026-45683 affects Opentelemetry Ebpf Instrumentation. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-45683?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-45683 have an EU (EUVD) identifier?: Yes. CVE-2026-45683 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33956.
When was CVE-2026-45683 published?: CVE-2026-45683 was published on 2026-06-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:opentelemetry:ebpf_instrumentation:*:*:*:*:*:go:*:*

More vulnerabilities in Opentelemetry Ebpf Instrumentation

CVE-2026-45686 — High (CVSS 7.5): OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. From version…
CVE-2026-45685 — High (CVSS 7.5): OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. From version…
CVE-2026-45678 — High (CVSS 7.5): OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version…
CVE-2026-45679 — Medium (CVSS 6.5): OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version…
CVE-2026-45681 — Medium (CVSS 5.9): OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version…
CVE-2026-45680 — Medium (CVSS 5.9): OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version…

All CVEs affecting Opentelemetry Ebpf Instrumentation →

Other CWE-127 vulnerabilities

CVE-2024-10395 — High (CVSS 8.6): No proper validation of the length of user input in http_server_get_content_type_from_extension.
CVE-2026-5928 — High (CVSS 7.5): Calling the ungetwc function on a FILE stream with wide characters encoded in a character set that has overlaps between…
CVE-2025-20359 — Medium (CVSS 6.5): Multiple Cisco products are affected by a vulnerability in the Snort 3 HTTP Decoder that could allow an…
CVE-2025-32050 — Medium (CVSS 5.9): A flaw was found in libsoup. The libsoup append_param_quoted() function may contain an overflow bug resulting in a…

Browse all CWE-127 vulnerabilities →