CVE-2026-45681
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | go.opentelemetry.io/obi | <0.9.0 | 0.9.0 |
| GO | go.opentelemetry.io/obi | < 0.9.0 | 0.9.0 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| opentelemetry | ebpf_instrumentation | {"endExcluding":"0.9.0"} | 0.9.0 |
References
- https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-r6c9-g6q5-qrf9
- https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation
- https://github.com/advisories/GHSA-r6c9-g6q5-qrf9
- https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/releases/tag/v0.9.0
- https://www.suse.com/security/cve/CVE-2026-45681.html
CWEs
CWE-125 CWE-130
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.