CVE-2025-12148Network attack vector

IP field disclosure via searchable masked values

Published Oct 29, 2025 · Updated Oct 29, 2025

Information disclosure in Search Guard FLX 1.0.0 through 3.1.1 allows remote authenticated users to reconstruct masked IP field values. Field Masking redacts each IP value from returned _source content but still evaluates exact-value searches against the original field, so matching hits form an oracle for testing candidate addresses. Exploitation requires low-privileged cluster access, an IP field protected by Field Masking, and candidate-value queries; it exposes field contents without reported data modification or service interruption.

CVSS severity6.0
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Information disclosure in Search Guard FLX 1.0.0 through 3.1.1 allows remote authenticated users to reconstruct masked IP field values. Field Masking redacts each IP value from returned _source content but still evaluates exact-value searches against the original field, so matching hits form an oracle for testing candidate addresses. Exploitation requires low-privileged cluster access, an IP field protected by Field Masking, and candidate-value queries; it exposes field contents without reported data modification or service interruption.

The record

CVE
CVE-2025-12148
Published
Oct 29, 2025
Updated
Oct 29, 2025
Vendor
floragunn GmbH
Product
Search Guard FLX
Classifications
CWE-732, CWE-200, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 29, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.0 <=3.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

floragunn GmbH · Search Guard FLXversion=1.0.0 <=3.1.1

Published CVSS scores

6.0floragunn GmbHCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo