CVE-2026-45682 PUBLISHED

OpenTelemetry eBPF Instrumentation: CappedConcurrentHashMap leaks keys after removals

Assigner: GitHub_M
Reserved: 12.05.2026 Published: 02.06.2026 Updated: 02.06.2026

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.

Metrics

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

Product Status

Vendor open-telemetry
Product opentelemetry-ebpf-instrumentation
Versions
  • Version < 0.9.0 is affected

References

Problem Types

  • CWE-401: Missing Release of Memory after Effective Lifetime CWE
  • CWE-770: Allocation of Resources Without Limits or Throttling CWE