What is CVE-2023-31416?

CVE-2023-31416 is a medium-severity vulnerability in Elastic Apm Server, classified under Information Disclosure. CVSS score: 5.3/10. Published 2023-10-26.

How severe is CVE-2023-31416?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Information disclosure in Elastic Apm Server

CVE-2023-31416

Secret token configuration is never applied when using ECK <2.8 with APM Server >=8.0. This could lead to anonymous requests to an APM Server being accepted and the data ingested into this APM deployment.

Vulnerability class: Information Disclosure

Published 2023-10-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (34.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.001

Affected products

Elastic Apm Server
Elastic Cloud On Kubernetes — versions <2.8
Elastic Cloud On Kubernetes

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

discuss.elastic.co/t/elastic-cloud-on-kubernetes-eck-2-8-security-update/343854 (Vendor Advisory)
www.elastic.co/community/security (Not Applicable)

Frequently asked questions

What is CVE-2023-31416?: CVE-2023-31416 is a medium-severity vulnerability in Elastic Apm Server, classified under Information Disclosure. CVSS score: 5.3/10. Published 2023-10-26.
How severe is CVE-2023-31416?: Medium severity. CVSS v3 base score is 5.3 out of 10.