CVE-2026-4799 - Vulnerability Details - OpenCVE

In Search Guard FLX up to version 4.0.1, it is possible to use specially crafted requests to redirect the user to an untrusted URL.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

floragunn

Search Guard FLX

unaffected

Version	Status	Constraints
`1.0.0`	affected	≤ 4.0.1

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://docs.search-guard.com/latest/changelog-searchguard-flx-4_1_0
https://search-guard.com/cve-advisory/

History

Tue, 31 Mar 2026 18:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Tue, 31 Mar 2026 15:00:00 +0000

Type	Values Removed	Values Added
Description		In Search Guard FLX up to version 4.0.1, it is possible to use specially crafted requests to redirect the user to an untrusted URL.
Title		Open redirect vulnerability in Search Guard Kibana Plugin via manipulated requests
Weaknesses		CWE-601
References		https://docs.search-guard.com/latest/changelog-searchguard-flx-4_1_0 https://search-guard.com/cve-advisory/
Metrics		cvssV3_1 `{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: floragunn

Published: 2026-03-31T14:41:05.646Z

Updated: 2026-03-31T17:20:02.797Z

Reserved: 2026-03-25T08:43:23.387Z

Link: CVE-2026-4799

Vulnrichment

Updated: 2026-03-31T17:19:58.969Z

NVD

Status : Received

Published: 2026-03-31T15:16:21.137

Modified: 2026-03-31T15:16:21.137

Link: CVE-2026-4799

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-601

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