Medium 6.8Published Mar 31, 2026

CVE-2026-4818Some management operations on data streams are not properly restricted when user does not have the necessary privileges

Updated under an hour ago (Oct 26, 2026, 5:30 PM ET)

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It affects floragunn Search Guard FLX and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for floragunn Search Guard FLX

Exploited in the last 30 days

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: 6.8 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE): CWE-285, CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: floragunn
NVD analysis: Analyzed
Record last updated: Mar 31, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

floragunn Search Guard FLX floragunn:search_guard_flx (from the name)	from 3.0.0 through 4.0.1	CNA record
search-guard flx search-guard:flx	from 3.0.0 before 4.1.0	NVD

References

References

https://search-guard.com/cve-advisory/	vendor-advisory
https://docs.search-guard.com/latest/changelog-searchguard-flx-4_1_0	release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.