CVE-2026-45681

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Source
https://cve.org/CVERecord?id=CVE-2026-45681
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45681.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-45681
Aliases
Downstream
Related
Published
2026-06-02T15:25:00Z
Modified
2026-09-18T18:26:44Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
OpenTelemetry eBPF Instrumentation: CPU-mismatch fallback uses 256-byte buffer with 8KB size
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-125",
        "CWE-130"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45681.json"
}
References

Affected packages

Git / github.com/open-telemetry/opentelemetry-ebpf-instrumentation

Affected ranges

Type
GIT
Repo
https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
e92b0c2dd4d88b90d28b7b706eacbac2fabd2623
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:opentelemetry:ebpf_instrumentation:*:*:*:*:*:go:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.9.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

v0.*
v0.1.0
v0.2.0
v0.3.0
v0.4.0
v0.4.1
v0.5.0
v0.6.0
v0.7.0
v0.7.1
v0.8.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45681.json"