CVE-2026-4818

HIGH EPSS 8.7%

Published Mar 31, 20263mo ago · Modified Jun 17, 20262w ago

8.1 CVSS 3.1

High

Published Mar 31, 2026 3mo ago

Last Modified Jun 17, 2026 2w ago

Description

In Search Guard FLX versions from 3.0.0 up to 4.0.1, there exists an issue which allows users without the necessary privileges to execute some management operations against data streams.

CVSS Details

Base Score

8.1

Exploitability

2.8

Impact

5.2

Vector string

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

Attack Vector Network

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope Unchanged

Confidentiality High

Integrity High

Availability None

Threat Intelligence

EPSS Exploit Probability

8.7% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 2

CWE-285

CWE-862 Missing Authorization Authorization

Affected Products 1

Vendor	Product	Version	Range
search-guard	flx	*	≥3.0.0 – <4.1.0

References 2

docs.search-guard.com https://docs.search-guard.com/latest/changelog-searchguard-flx-4_1_0

Release Notes
search-guard.com https://search-guard.com/cve-advisory/

Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.