CVE-2026-4818 json
Some management operations on data streams are not properly restricted when user does not have the necessary privileges
published 7mo ago modified 3mo ago also EUVD-2026-17506
- cvss
- 6.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 9%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- search-guard flx 4.1.0
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 7mo ago
Exploit prediction
0.20% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.8 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N |
| NVD | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
Affected products
- floragunn Search Guard FLX
Classification
References
-
search-guard.com
/cve-advisory/
vendor-advisory
-
docs.search-guard.com
/latest/changelog-searchguard-flx-4_1_0
release-notes
Sources
- CVE List CVE-2026-4818
- NVD CVE-2026-4818
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