CVE-2026-45680Public exploitNetwork attack vector

CPU exhaustion via uncapped probe-hit replay

Published Jun 2, 2026 · Updated Jun 2, 2026

Resource exhaustion in OpenTelemetry eBPF Instrumentation before 0.9.0 allows remote attackers to consume agent CPU via instrumented traffic. The pkg/export/prom/prom_bpf.go exporter derives an uncapped run-count delta, then calls BpfProbeLatency once for every recorded probe hit. The issue requires BPF internal metrics and a busy traced workload; sustained probe activity can monopolize exporter CPU at each collection interval.

CVSS severity5.9
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in OpenTelemetry eBPF Instrumentation before 0.9.0 allows remote attackers to consume agent CPU via instrumented traffic. The pkg/export/prom/prom_bpf.go exporter derives an uncapped run-count delta, then calls BpfProbeLatency once for every recorded probe hit. The issue requires BPF internal metrics and a busy traced workload; sustained probe activity can monopolize exporter CPU at each collection interval.

The record

CVE
CVE-2026-45680
Published
Jun 2, 2026
Updated
Jun 2, 2026
Vendor
OpenTelemetry
Product
OpenTelemetry eBPF Instrumentation
Classifications
CWE-400, CWE-834, T1499.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.9.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenTelemetry · OpenTelemetry eBPF Instrumentationversion=< 0.9.0

Published CVSS scores

5.9GitHubCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
CWE-834Excessive Iteration
T1499.003Application Exhaustion Flood

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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