CVE-2026-45682: medium-severity vulnerability in open-telemetry opentelemetry-ebpf-instrumentati…
OpenTelemetry eBPF Instrumentation: CappedConcurrentHashMap leaks keys after removals
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.1epss 0.2%
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.
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
open-telemetry · opentelemetry-ebpf-instrumentationRelated CVEs — open-telemetry opentelemetry-ebpf-instrumentati…
In the same product, most dangerous first.
CVE-2026-45685HIGHOpenTelemetry eBPF Instrumentation: MongoDB parser panics on malformed wire messagesEPSS 0.5%CVE-2026-45686HIGHOpenTelemetry eBPF Instrumentation: Memcached payload length overflow can crash OBIEPSS 0.4%CVE-2026-45678HIGHOpenTelemetry eBPF Instrumentation: Postgres BIND parsing can panic on malformed payloadsEPSS 0.3%CVE-2026-45680MEDIUMOpenTelemetry eBPF Instrumentation: Unbounded BPF internal metrics replay can exhaust CPUEPSS 0.3%CVE-2026-45681MEDIUMOpenTelemetry eBPF Instrumentation: CPU-mismatch fallback uses 256-byte buffer with 8KB sizeEPSS 0.3%CVE-2026-45679MEDIUMOpenTelemetry eBPF Instrumentation: Redis error text is exported in span status messagesEPSS 0.2%