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Medium, CVSS 6.5

Elasticsearch vulnerable to stack overflow in the search API

CVE-2023-31419GHSA-qwrx-45xf-jjf7

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (org.elasticsearch:elasticsearch 8.9.1, 7.17.13), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
6.5 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
  • CVE-2023-31419: 61.07% estimated exploitation activity in the next 30 days; percentile 99.16 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

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.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-qwrx-45xf-jjf7

Agent brief

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# Patch Next advisory brief: CVE-2023-31419

Advisory: Elasticsearch vulnerable to stack overflow in the search API
IDs: CVE-2023-31419, GHSA-qwrx-45xf-jjf7
Record: https://patchnext.com/advisories/cve-2023-31419 (revision 1, source checked 26 Oct 2026, 16:20 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.5)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: org.elasticsearch:elasticsearch 8.9.1, 7.17.13. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.elasticsearch:elasticsearch: affected >= 7.0.0, < 7.17.13; >= 8.0.0, < 8.9.1; fixed in 8.9.1, 7.17.13

## Suggested inspection (read-only)
- Maven org.elasticsearch:elasticsearch: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.elasticsearch:elasticsearch.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-qwrx-45xf-jjf7 (GitHub-reviewed advisory GHSA-qwrx-45xf-jjf7 lists affected ranges: Maven org.elasticsearch:elasticsearch >=7.0.0 =8.0.0 <8.9.1)

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