CVE-2026-4818
HIGHCVSS 8.1/10EPSS 0.19%
Last modified
CVE-2026-4818 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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.. EPSS estimates a 0.19% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Search-Guard | Flx | >= 3.0.0, < 4.1.0 |
References
- https://search-guard.com/cve-advisory/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-4818?
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.
How severe is CVE-2026-4818?
CVE-2026-4818 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.
How do I fix CVE-2026-4818?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2026-4818?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST