# CVE-2026-63145 — Elastic Kibana

> As of 2026-07-22, CVE-2026-63145 is a MEDIUM-severity vulnerability in Elastic Kibana, CVSS v3.1 4.3, EPSS 0.1% (4.8th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-63145 as of 2026-07-22; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-07-22

## What is CVE-2026-63145?

Incorrect Authorization (CWE-863) in Kibana can lead to integrity compromise of Machine Learning audit and notification records via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). A vulnerability exists in Kibana's Machine Learning functionality where a Machine Learning management endpoint performs an insufficient authorization check. The endpoint validates only a coarse privilege level but does not verify that the requesting user has access to the specific Machine Learning job or notification resources provided in the request. As a result, a low-privileged user with Machine Learning access in any Kibana space can manipulate Machine Learning audit and notification records for arbitrary jobs—including jobs in other spaces or belonging to other users—by leveraging Kibana's internally elevated credentials to write to restricted Machine Learning system indices that the user cannot access directly.

The record classifies CVE-2026-63145 under weakness class [CWE-863](https://intel.threadlinqs.com/cwe/CWE-863). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 76 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 4.3 — MEDIUM (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N`)
- **EPSS (FIRST):** 0.1% probability of exploitation in the next 30 days, higher than 4.8% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 2.3/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-07-21, last modified 2026-07-22

## Is CVE-2026-63145 being exploited?

It currently carries a trending score of 31 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Elastic](https://intel.threadlinqs.com/vendors/elastic): Kibana

## How to fix CVE-2026-63145

No vendor patch reference has been recorded for CVE-2026-63145 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-63145

No threat campaign in the Threadlinqs corpus currently references CVE-2026-63145, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, NVD, FIRST EPSS. Last verified by Threadlinqs on 2026-07-22. This product uses the NVD API but is not endorsed or certified by the NVD.

**Other references**

- [discuss.elastic.co](https://discuss.elastic.co/t/kibana-8-19-19-9-3-8-9-4-4-security-update-esa-2026-69/388572)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-63145
Full detection coverage and IOCs for threats exploiting CVE-2026-63145 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp