What is CVE-2023-31418?

CVE-2023-31418 is a high-severity vulnerability in Elastic Elasticsearch, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2023-10-26.

How severe is CVE-2023-31418?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2023-31418 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Resource exhaustion in Elastic Elasticsearch

CVE-2023-31418

An issue has been identified with how Elasticsearch handled incoming requests on the HTTP layer. An unauthenticated user could force an Elasticsearch node to exit with an OutOfMemory error by sending a moderate number of malformed HTTP req…

Vulnerability class: DoS (Denial of Service)

EPSS: 0.009 (76.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Elastic Elasticsearch — versions 7.17.12, 8.0.0, 2.13.3

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-31418?: CVE-2023-31418 is a high-severity vulnerability in Elastic Elasticsearch, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2023-10-26.
How severe is CVE-2023-31418?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-31418 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.