CVE-2026-56147: Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to unauthorized information disclosure and case attachment integrity compromise via Privilege Abuse (C

highCVSS 7.1CVE-2026-56147

Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to unauthorized information disclosure and case attachment integrity compromise via Privilege Abuse (CAPEC-122). An inconsistency in Kibana's file access authorization logic allows a low-privileged authenticated user to retrieve, modify, and delete case attachments that belong to feature areas they are not authorized to access. Because the access control check and the resource retrieval use different resolution mechanisms, an authenticated attacker with limited file management permissions can obtain the contents of, modify, or delete protected case attachments — such as those associated with Security Solution cases — without holding the privileges required to access those features.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: high — CVSS 7.1
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-2026-56147

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-2026-561470.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 18% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-56147	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] Kibana: Multiple vulnerabilitiescert-bund
unknownMultiple vulnerabilities in Elastic products (July 22, 2026)cert-fr-avis

Recent advisories for Authorization Bypass

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.

criticalCVE-2026-67342: ArcadeDB versions before 26.7.2 contain an authorization bypass vulnerability in HTTP handlers…nvd · 2026-08-01
criticalCVE-2026-67330: @better-auth/scim (a better-auth plugin) versions >= 1.4.0-beta.27 through = 1.7.0-beta.0 thro…nvd · 2026-08-01
highCVE-2026-67329: @better-auth/stripe versions >= 1.4.11 and = 1.7.0-beta.0 and < 1.7.0-beta.10, contain an auth…nvd · 2026-08-01
mediumCVE-2026-11995: The Gutena Forms – Contact Form, Survey Form, Feedback Form, Booking Form, and Custom Form Bui…nvd · 2026-08-01
mediumCVE-2026-10782: The RealHomes Memberships plugin for WordPress is vulnerable to authorization bypass in all ve…nvd · 2026-08-01
unknownCVE-2026-14538: An improper authorization and security-boundary bypass vulnerability in the bigquery-execute-s…nvd · 2026-07-31