Resource exhaustion in Open-Telemetry Opentelemetry-Ebpf-Instrumentation
CVE-2026-45680
OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, OBI replays BPF probe hits into histogram observations by looping once per recorded run count. On busy systems, the run-count delta can become very large, causing the metrics exporter to spend excessive CPU time in a tight loop every collection interval. This issue has been patched in version 0.9.0.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (23.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisorie… (Exploit, Vendor Advisory)
- github.com/open-telemetry/opentelemetry-ebpf-instrumentation/releases/tag/v0.9.0 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-45680?
- CVE-2026-45680 is a medium-severity vulnerability in Open-Telemetry Opentelemetry-Ebpf-Instrumentation, classified under Uncontrolled Resource Consumption. CVSS score: 5.9/10. Published 2026-06-02.
- How severe is CVE-2026-45680?
- Medium severity. CVSS v3 base score is 5.9 out of 10.