Medium severity5.9GHSA Advisory· Published Jun 2, 2026· Updated Jun 3, 2026
CVE-2026-45681
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
go.opentelemetry.io/obiGo | < 0.9.0 | 0.9.0 |
Affected products
2< 0.9.0+ 1 more
- (no CPE)range: < 0.9.0
- cpe:2.3:a:opentelemetry:ebpf_instrumentation:*:*:*:*:*:go:*:*range: <0.9.0
Patches
Vulnerability mechanics
References
4- github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-r6c9-g6q5-qrf9nvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-r6c9-g6q5-qrf9ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-45681ghsaADVISORY
- github.com/open-telemetry/opentelemetry-ebpf-instrumentation/releases/tag/v0.9.0nvdProductRelease NotesWEB
News mentions
1- OpenTelemetry eBPF Instrumentation: 10 CVEs Disclosed in a Single AdvisoryVypr Intelligence · May 18, 2026