CVE-2026-45685

Name of the Vulnerable Software and Affected Versions OpenTelemetry eBPF Instrumentation versions 0.1.0 through 0.8.0

Description 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, meaning a single crafted message can terminate telemetry collection for the affected process or node. Technical details include slice-bounds panics in the parseOpMessage() and parseSections() functions when processing truncated OP MSG packets or malformed document-sequence sections, as well as a runtime panic in the parseFirstField() function due to an unchecked type assertion on field.Value when processing malformed BSON documents.

Recommendations Update to version 0.9.0 or later. As a temporary workaround, restrict the telemetry agent from processing MongoDB traffic from untrusted or partially trusted clients to minimize the risk of exploitation.