Integer Overflow Vulnerability in OpenTelemetry eBPF Instrumentation by OpenTelemetry
CVE-2026-45686

7.5HIGH

Key Information:

Vendor

Open-telemetry

Status
Opentelemetry-ebpf-instrumentation
Vendor
CVE Published:
2 June 2026

What is CVE-2026-45686?

The OpenTelemetry eBPF Instrumentation is susceptible to an integer overflow due to its memcached text protocol parser, affecting versions from 0.7.0 up until just before 0.9.0. This vulnerability allows attackers to send crafted requests that contain excessively large byte values. The system's failure to correctly validate the length of these payloads leads to a negative value calculation, potentially causing runtime crashes and denial of service. The issue has been addressed in version 0.9.0, which provides essential remediation.

Affected Version(s)

opentelemetry-ebpf-instrumentation >= 0.7.0, < 0.9.0

References

https://github.com/open-telemetry/opentelemetry-ebpf-inst...
x_refsource_CONFIRM
https://github.com/open-telemetry/opentelemetry-ebpf-inst...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.