CVE-2025-12148: medium-severity vulnerability in floragunn Search Guard FLX
Unauthorized access to fields protected by Field Masking (FM) for fields of type IP
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6epss 0.3%
In Search Guard versions 3.1.1 and earlier, Field Masking (FM) rules are improperly enforced on fields of type IP (IP Address).
While the content of these fields is properly redacted in the _source document returned by search operations, the results do return documents (hits) when searching based on a specific IP values. This allows to reconstruct the original contents of the field.
Workaround - If you cannot upgrade immediately, you can avoid the problem by using field level security (FLS) protection on fields of the affected types instead of field masking.
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
Affected products
floragunn · Search Guard FLXRelated CVEs — floragunn Search Guard FLX
In the same product, most dangerous first.
CVE-2025-12149MEDIUMUnauthorized access to documents protected by Document-Level Security (DLS), when Signals watches include a search query involving protected documentsEPSS 0.3%CVE-2025-12147MEDIUMUnauthorized access to fields protected by Field-Level Security (FLS) when those fields are members of an objectEPSS 0.3%CVE-2026-4819MEDIUMSearch Guard audit logs can contain under certain conditions user credentialsEPSS 0.2%CVE-2025-13653MEDIUMUnauthorized access to documents in data streams with specially crafted requestsEPSS 0.2%CVE-2026-4818MEDIUMSome management operations on data streams are not properly restricted when user does not have the necessary privilegesEPSS 0.2%CVE-2026-4799MEDIUMOpen redirect vulnerability in Search Guard Kibana Plugin via manipulated requestsEPSS 0.2%