CVE-2025-12147

MEDIUM EPSS 16.2%

Published Oct 29, 20258mo ago · Modified Jun 17, 20262w ago

6.0 CVSS 4.0

Medium

Published Oct 29, 2025 8mo ago

Last Modified Jun 17, 2026 2w ago

Description

In Search Guard FLX versions 3.1.1 and earlier, Field-Level Security (FLS) rules are improperly enforced on object-valued fields. When an FLS exclusion rule (e.g., ~field) is applied to a field which contains an object as its value, the object is correctly removed from the _source returned by search operations. However, the object members (i.e., child attributes) remain accessible to search queries. This exposure allows adversaries to infer or reconstruct the original contents of the excluded object. Workaround - If you cannot upgrade immediately and FLS exclusion rules are used for object valued attributes (like ~object), add an additional exclusion rule for the members of the object (like ~object.*).

CVSS Details

Base Score

6.0

Exploitability

—

Impact

—

Vector string

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector Network

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

16.2% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 2

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor Information Exposure

CWE-732

References 2

docs.search-guard.com https://docs.search-guard.com/latest/changelog-searchguard-flx-3_1_2
search-guard.com https://search-guard.com/cve-advisory/

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.