What is CVE-2026-115716?

CVE-2026-115716 is a medium-severity vulnerability in Elastic Apm Server, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-11-03.

How severe is CVE-2026-115716?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in Elastic Apm Server

CVE-2026-115716

Allocation of Resources Without Limits or Throttling (CWE-770) in APM Server can lead to denial of service via Oversized Serialized Data Payloads (CAPEC-231). An attacker who can send OpenTelemetry (OTLP) data to APM Server over HTTP can cause APM Server to exhaust its memory and terminate. This stops the intake of APM and OpenTelemetry data until APM Server restarts.

Published 2026-11-03 · last modified 2026-11-03.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Elastic Apm Server

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

discuss.elastic.co/t/apm-server-8-19-24-9-4-9-9-5-6-security-update-esa-2026-23…

Frequently asked questions

What is CVE-2026-115716?: CVE-2026-115716 is a medium-severity vulnerability in Elastic Apm Server, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-11-03.
How severe is CVE-2026-115716?: Medium severity. CVSS v3 base score is 6.5 out of 10.