CVE-2026-72683

MediumCVSS 6.5/10Last modified Sep 1, 2026

Description

A flaw in Elasticsearch allows an authenticated user with the privileges required to invoke the simulate pipeline API endpoint (https://www.elastic.co/docs/api/doc/elasticsearch/operation/operation-ingest-simulate) to submit a request that causes a self-referential data structure to be created. When a specific internal component later processes that structure, the operation recurses without bound and raises a fatal error that is not handled by the surrounding execution path, terminating the affected node process and resulting in a denial of service.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-674

Affected software

Vendor	Product	Versions
Elastic	Elasticsearch	>= 5.0.0, <= 8.19.18; >= 9.3.0, <= 9.3.7; >= 9.4.0, <= 9.4.3

References

https://discuss.elastic.co/t/elasticsearch-8-19-19-9-3-8-9-4-4-security-update-esa-2026-75/389496Vendor Advisory

Timeline

Published: Aug 13, 2026
Last modified: Sep 1, 2026
NVD status: Analyzed

Related CVEs from 2026

CVE-2026-726846.5A flaw in Elasticsearch allows an authenticated user holding only read privileges to submit a small search request containing a crafted user CVE-2026-726854.3A flaw in Elasticsearch allows a low-privileged authenticated user who can index documents to submit a single small document containing a cr CVE-2026-726866.5A flaw in Elasticsearch allows a low-privileged authenticated user to submit a single request containing a crafted user-supplied input. A sp CVE-2026-726876.5A flaw in Elasticsearch allows a low-privileged authenticated user to submit a single small request containing a forged opaque identifier. E CVE-2026-726887.5A missing authentication vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to read arbit CVE-2026-726897.5A broken object-level authorization vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to CVE-2026-72692.4A vulnerability was found in SourceCodester Pharmacy Sales and Inventory System 1.0. Affected is an unknown function of the file /index.php?CVE-2026-726907.1An improper authorization vulnerability in Attendize through commit 9289acb allows an authenticated remote attacker to inject persistent man CVE-2026-726917.5An authentication bypass vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to mint MASTE CVE-2026-726927.5A missing authorization vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to irreversibl CVE-2026-726937.8`openvt -u` is intended to identify the owner of the current VT and then execute `login` as that user from a privileged context. In the docu CVE-2026-726947.1A flaw was found in MRTG. When the MRTG daemon is started as a root user and subsequently drops privileges, a local, low-privileged attacker