CVE-2026-45681 Details
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.
A vulnerability in OpenTelemetry eBPF Instrumentation prior to version 0.9.0 allows for an out-of-bounds read that can leak adjacent memory into telemetry. This issue arises in the per-CPU message-buffer fallback path, which uses a 256-byte backup buffer while preserving the original payload size of up to 8KB. When a CPU mismatch occurs, the OpenTelemetry eBPF Instrumentation can read beyond the fallback buffer, causing a memory leak. This vulnerability has been patched in version 0.9.0.
Users can upgrade to OpenTelemetry eBPF Instrumentation version 0.9.0 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 2, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-r6c9-g6q5-qrf9 | CISA-ADP | ExploitVendor Advisory |
| https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/releases/tag/v0.9.0 | [email protected] | ProductRelease Notes |
| https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-r6c9-g6q5-qrf9 | [email protected] | ExploitVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-125 | Out-of-bounds Read | [email protected] |
| CWE-130 | Improper Handling of Length Parameter Inconsistency | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| opentelemetry ebpf instrumentation | < 0.9.0 |
CPE
Remediation
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Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 22, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 3, 2026 | Initial Analysis | [email protected] |
| Jun 2, 2026 | CVE Modified | CISA-ADP |
| Jun 2, 2026 | New CVE Received | [email protected] |