CVE-2026-45685 HIGH

CVE-2026-45685: OpenTelemetry eBPF Instrumentation: MongoDB parser panics on malformed wire messages

Vendor Open-Telemetry
Product opentelemetry-ebpf-instrumentation
Weakness CWE-20 · Input validation
Published June 2, 2026
Last update June 2, 2026

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. From version 0.1.0 to before version 0.9.0, malformed MongoDB wire messages can trigger uncaught panics in the MongoDB TCP parser, allowing a remote unauthenticated attacker to crash the telemetry agent and cause a denial of service. The parser operates on raw attacker-controlled network payloads before the input is fully validated, so a single crafted message can terminate telemetry collection for the affected process or node. This issue has been patched in version 0.9.0.

Key dates

02Disclosure timeline

June 2, 2026 CVE published
June 2, 2026 Record updated