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.*).
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.*).
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Affected Vendors & Products
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Fixes
Solution
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Workaround
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References
History
Wed, 29 Oct 2025 16:15:00 +0000
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ssvc
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Wed, 29 Oct 2025 15:45:00 +0000
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| 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.*). | |
| Title | Unauthorized access to fields protected by Field-Level Security (FLS) when those fields are members of an object | |
| Weaknesses | CWE-200 CWE-732 |
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cvssV4_0
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Status: PUBLISHED
Assigner: floragunn
Published:
Updated: 2025-10-29T15:53:51.291Z
Reserved: 2025-10-24T11:00:52.805Z
Link: CVE-2025-12147
Updated: 2025-10-29T15:53:46.382Z
Status : Received
Published: 2025-10-29T16:15:33.600
Modified: 2025-10-29T16:15:33.600
Link: CVE-2025-12147
No data.
OpenCVE Enrichment
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