Vulnerability · Published Mar 31, 2026 · Assigned by floragunn
CVE-2026-4818Some management operations on data streams are not properly restricted when user does not have the necessary privileges
Medium 6.8
In plain English
A medium-severity missing authorization in Search Guard FLX from floragunn. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).
Severity (CVSS 3.1)6.8Medium
Exploit odds (30 days)0.2%top 90.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| floragunn | Search Guard FLX | 3.0.0 – through 4.0.1 |
Weakness: CWE-285, CWE-862 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N