Access Control Flaw in Search Guard FLX from a Major Vendor
CVE-2025-13653

4.3MEDIUM

Key Information:

Vendor

Floragunn

Status
Search Guard Flx
Vendor
CVE Published:
1 December 2025

What is CVE-2025-13653?

A significant access control vulnerability exists in Search Guard FLX versions ranging from 3.1.0 to 4.0.0 when enterprise modules are disabled. This issue permits authenticated users to exploit specially crafted requests, allowing them to access and read documents from data streams without possessing the necessary privileges. This could lead to unauthorized data disclosure, emphasizing the need for immediate remediation.

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Affected Version(s)

Search Guard FLX 3.1.0 <= 4.0.0

References

https://search-guard.com/cve-advisory/
https://docs.search-guard.com/latest/changelog-searchguar...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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