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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.

PUBLISHED Reserved 2026-05-12 | Published 2026-06-02 | Updated 2026-06-02 | Assigner GitHub_M




MEDIUM: 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Problem types

CWE-125: Out-of-bounds Read

CWE-130: Improper Handling of Length Parameter Inconsistency

Product status

< 0.9.0
affected

References

github.com/...tation/security/advisories/GHSA-r6c9-g6q5-qrf9 exploit

github.com/...tation/security/advisories/GHSA-r6c9-g6q5-qrf9

github.com/...metry-ebpf-instrumentation/releases/tag/v0.9.0

cve.org (CVE-2026-45681)

nvd.nist.gov (CVE-2026-45681)

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