CVEvulnerability
CVE-2026-45681
5.9 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-06-02
- Last modified
- 2026-07-22
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-125, CWE-130
Description
OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, the per-CPU message-buffer fallback path uses a 256-byte backup buffer but preserves the original payload size, which can be up to 8KB. If a CPU mismatch occurs, OBI can read beyond the fallback buffer and leak adjacent memory into telemetry. This issue has been patched in version 0.9.0.
Affected configurations
• opentelemetry ebpf instrumentation (< 0.9.0)
Related
References
- https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/releases/tag/v0.9.0 Product, Release Notes
- https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-r6c9-g6q5-qrf9 Exploit, Vendor Advisory
- https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-r6c9-g6q5-qrf9 Exploit, Vendor Advisory