CVE-2026-45682

MEDIUM
Published Jun 2, 2026 Modified Jun 3, 2026 CWE-401 CWE-770

Description

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, the custom CappedConcurrentHashMap introduced for Java TLS state tracking never removes keys from its insertion-order queue when entries are deleted. In long-running instrumented JVMs, repeated connection churn can therefore grow the queue without bound and exhaust heap memory. This issue has been patched in version 0.9.0.

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CVSS v3.1 Score

5.1
MEDIUM
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploit Prediction

0.0016
Probability of exploitation
0.06%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-401 CWE-401
CWE-770 CWE-770

Affected Products

Vendor Product
opentelemetry ebpf_instrumentation

References

Frequently Asked Questions

What is CVE-2026-45682? +
OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, the custom CappedConcurrentHashMap introduced for Java TLS state tracking never removes keys from its insertion-order queue when entries are deleted. In long-running instrumented JVMs, repeated connection churn can therefore grow the queue without bound and exhaust heap memory. This issue has been patched in version 0.9.0. It has a CVSS v3.1 base score of 5.1 (MEDIUM).
How severe is CVE-2026-45682? +
CVE-2026-45682 has a CVSS v3.1 score of 5.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0016, placing it in the 0th percentile for exploitation probability.
What products are affected by CVE-2026-45682? +
CVE-2026-45682 affects products from opentelemetry, specifically: ebpf_instrumentation. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2026-45682? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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