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CVE-2026-45680— OpenTelemetry eBPF Instrumentation: Unbounded BPF internal metrics replay can exhaust CPU

Quick assessment

Affected
open-telemetry opentelemetry-ebpf-instrumentation
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenTelemetry eBPF Instrumentation是OpenTelemetry开源的一个基于eBPF的轻量级遥测数据采集工具。 OpenTelemetry eBPF Instrumentation 0.9.0之前版本存在安全漏洞，该漏洞源于BPF探针命中重放为直方图观测时循环次数过多，可能导致指标导出器在每个收集间隔内消耗过多CPU时间。

CVSS 5.9 · Medium EPSS 0.48% · P39

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 1

VendorProduct Version RangeStatus
open-telemetry opentelemetry-ebpf-instrumentation < 0.9.0 affected
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I. Basic Information for CVE-2026-45680

Vulnerability Information
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Vulnerability Title
OpenTelemetry eBPF Instrumentation: Unbounded BPF internal metrics replay can exhaust CPU
Source: CVE Program / CVE List V5
Vulnerability Description
OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, OBI replays BPF probe hits into histogram observations by looping once per recorded run count. On busy systems, the run-count delta can become very large, causing the metrics exporter to spend excessive CPU time in a tight loop every collection interval. This issue has been patched in version 0.9.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
OpenTelemetry eBPF Instrumentation 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenTelemetry eBPF Instrumentation是OpenTelemetry开源的一个基于eBPF的轻量级遥测数据采集工具。 OpenTelemetry eBPF Instrumentation 0.9.0之前版本存在安全漏洞，该漏洞源于BPF探针命中重放为直方图观测时循环次数过多，可能导致指标导出器在每个收集间隔内消耗过多CPU时间。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
open-telemetry opentelemetry-ebpf-instrumentation < 0.9.0 -

II. Public POCs for CVE-2026-45680

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III. Intelligence Information for CVE-2026-45680

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Vendor Advisories for CVE-2026-45680 (1)

Vendor Pages for CVE-2026-45680 (1)

Same Patch Batch · open-telemetry · 2026-06-02 · 10 CVEs total

CVE-2026-45685 7.5 HIGH OpenTelemetry eBPF Instrumentation: MongoDB parser panics on malformed wire messages
CVE-2026-45686 7.5 HIGH OpenTelemetry eBPF Instrumentation: Memcached payload length overflow can crash OBI
CVE-2026-45678 7.5 HIGH OpenTelemetry eBPF Instrumentation: Postgres BIND parsing can panic on malformed payloads
CVE-2026-45679 6.5 MEDIUM OpenTelemetry eBPF Instrumentation: Redis error text is exported in span status messages
CVE-2026-45681 5.9 MEDIUM OpenTelemetry eBPF Instrumentation: CPU-mismatch fallback uses 256-byte buffer with 8KB si
CVE-2026-45676 5.5 MEDIUM OpenTelemetry eBPF Instrumentation: Unsafe fastelf parsing allows malformed ELF to crash a
CVE-2026-45682 5.1 MEDIUM OpenTelemetry eBPF Instrumentation: CappedConcurrentHashMap leaks keys after removals
CVE-2026-45684 4.9 MEDIUM OpenTelemetry eBPF Instrumentation: Log enricher writev path can overread and overwrite us
CVE-2026-45683 3.8 LOW OpenTelemetry eBPF Instrumentation: Java TLS ioctl kprobe allows kernel memory disclosure

IV. Related Vulnerabilities

Same product: opentelemetry-ebpf-instrumentation
Same vendor: open-telemetry
Same weakness: CWE-400

V. Comments for CVE-2026-45680

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