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CVE-2023-31419

HighPublished

Elasticsearch StackOverflow vulnerability

Published: Oct 26, 2023
Updated: Feb 13, 2025
Assigning CNA: elastic
Evidence observed: Aug 4, 2026

Primary CVSS

7.5/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

61.7%

High · next 30 days

Percentile: 99.2%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

A flaw was discovered in Elasticsearch, affecting the _search API that allowed a specially crafted query string to cause a Stack Overflow and ultimately a Denial of Service.

Sources

Elasticsearch-Exploit-CVE-2023-31419PoC
Elasticsearch Stack Overflow Vulnerability
Elasticsearch-CVE-2023-31419PoC
Elasticsearch DoS CVE-2023-31419 exploit

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