CVE-2026-45681

MEDIUM EPSS 20.4%
Published Jun 2, 20264w ago · Modified Jun 17, 20261w ago
5.9 CVSS 3.1
Medium
Find Similar
Published Jun 2, 2026 4w ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.9
Exploitability
2.2
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
20.4% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 2

CWE-125 Out-of-bounds Read Memory Safety
CWE-130

Affected Products 1

VendorProductVersionRange
opentelemetryebpf_instrumentation* <0.9.0

References 2

  • github.com https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/releases/tag/v0.9.0
    ProductRelease Notes
  • github.com https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-r6c9-g6q5-qrf9
    ExploitVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.