CVE-2026-63145· NVD / CVE Program· CNA elastic

Incorrect Authorization in Kibana Leading to Machine Learning Audit Log Integrity Compromise

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.

MediumCVSS 4.3 · v3.1—No exploit No fix recorded

Broken access control (IDOR)

BDU:2026-15388

Published: Jul 21, 2026
Updated: Aug 3, 2026
EPSS: 0.3% · 17th percentile
CWE: CWE-863

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Action score

Monitor

Low priority for now.

CVSS: 17 / 40 · 4.3 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.3%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · elastic: 4.3; NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Noroxi analysis

No Noroxi analysis for this record yet

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Affected systems

Vendor	Product	CPE
elastic	kibana	cpe:2.3:a:elastic:kibana

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

elastic kibana7.14.0 and later · before 8.19.19
elastic kibana9.0.0 and later · before 9.3.8
elastic kibana9.4.0 and later · before 9.4.4

Versions reported by the vendor

Affected version ranges reported by the assigning authority (elastic). Independent of NVD's CPE analysis and usually ahead of it.

Elastic Kibana
- 9.4.0 and later · up to and including 9.4.3affected · semver
- 9.0.0 and later · up to and including 9.3.7affected · semver
- 8.0.0 and later · up to and including 8.19.18affected · semver

Same product

elastic: all records

Other highest-scoring records for the same primary product.

CVE-2019-7609Kibana versions before 5.6.15 and 6.6.1 contain an arbitrary code execution flaw in the Timelion visualizer.KEV
99Now
CVE-2018-17246Kibana versions before 6.4.3 and 5.6.13 contain an arbitrary file inclusion flaw in the Console plugin.
64This week
CVE-2025-25014Kibana arbitrary code execution via prototype pollution
45Plan
CVE-2020-7012Kibana versions 6.7.0 to 6.8.8 and 7.0.0 to 7.6.2 contain a prototype pollution flaw in the Upgrade Assistant.
40Plan
CVE-2024-12556Kibana Prototype Pollution can lead to code injection
39Monitor
CVE-2025-25015Kibana arbitrary code execution via prototype pollution
39Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2026-6313742 days apartIncorrect Authorization in Kibana Leading to Privilege Escalation
33Monitor
CVE-2026-7858344 days apartIncorrect Authorization in Kibana Leading to Privilege Escalation
32Monitor
CVE-2026-8230244 days apartIncorrect Authorization in Kibana Leading to Unauthorized Configuration Modification
32Monitor
CVE-2026-7267223 days apartIncorrect Authorization in Kibana Leading to Disclosure of Elastic Defend Endpoint Event Data
30Monitor
CVE-2026-7263023 days apartIncorrect Authorization in Kibana Fleet Leading to Privilege Escalation
28Monitor
CVE-2026-7264323 days apartIncorrect Authorization in Kibana Agent Builder Leading to Disclosure and Tampering of Private Agents
28Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

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Bug bounty scope