CVE-2026-56144: Incorrect Authorization (CWE-863) in Elasticsearch can allow an authenticated user with limited index privileges to exploit insufficient authorization controls in the ingest simula

mediumCVSS 5.3CVE-2026-56144

Incorrect Authorization (CWE-863) in Elasticsearch can allow an authenticated user with limited index privileges to exploit insufficient authorization controls in the ingest simulation feature. By targeting indices they are not authorized to access directly, the user can cause those indices' configured ingest pipelines to execute and return their output, potentially disclosing data processed or enriched by those pipelines. Additionally, the same feature can be used to retrieve index mapping metadata for indices the user are not authorized to access directly.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: medium — CVSS 5.3
Published: 2026-07-21
Last updated: 2026-07-22
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-56144

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-561440.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-56144	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

medium[NEW] [medium] Elasticsearch: Multiple vulnerabilities allow DoS and information disclosurecert-bund
unknownMultiple vulnerabilities in Elastic products (July 22, 2026)cert-fr-avis

Recent advisories for Incorrect Authorization

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

highCVE-2026-18394: Incorrect authorization in the http_request tool in Strands Agents Tools before 0.8.2 might al…nvd · 2026-07-31
unknownCVE-2026-18394 - Incorrect authorization in Strands Agents Tools http_request toolaws · 2026-07-31
unknownCVE-2026-14537: Incorrect Authorization in the direct HTTP API tool invocation endpoint in Google mcp-toolbox …nvd · 2026-07-31
criticalCVE-2026-48449: Adobe Campaign Classic (ACC) is affected by an Incorrect Authorization vulnerability that coul…nvd · 2026-07-30
unknownCVE-2026-44944: An Incorrect Authorization vulnerability in open-iscsi allows unprivilidged local users to use…nvd · 2026-07-29
highCVE-2026-48396: Bridge is affected by an Incorrect Authorization vulnerability that could result in arbitrary …nvd · 2026-07-28