CVE-2026-45684
4.9 · MEDIUMOverview
CVE-2026-45684 is a medium-severity vulnerability affecting opentelemetry ebpf_instrumentation. It was published on June 2, 2026 and has a CVSS 3.1 base score of 4.9 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 4.9, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. From version 0.7.0 to before version 0.9.0, OBI's log enricher mishandles writev buffers by reading only the first iovec entry but using the total iov_iter.count as the copy length. When log injection is enabled, a crafted multi-segment writev call can make OBI read and overwrite memory beyond the first segment. This issue has been patched in version 0.9.0.
Remediation
Check the references section for vendor advisories and patches from opentelemetry. Update ebpf_instrumentation to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| opentelemetry | ebpf_instrumentation | >= 0.7.0, < 0.9.0 | Affected |
References
Frequently Asked Questions
What is CVE-2026-45684?
CVE-2026-45684 is a medium-severity vulnerability affecting opentelemetry ebpf_instrumentation. It was published on June 2, 2026 and has a CVSS 3.1 base score of 4.9 (MEDIUM).
How severe is CVE-2026-45684?
This vulnerability has a CVSS 3.1 base score of 4.9, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-45684?
Check the references section for vendor advisories and patches from opentelemetry. Update ebpf_instrumentation to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-45684?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-45684 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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