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CVE-2026-4819

Search Guard audit logs can contain under certain conditions user credentials

MEDIUM
6.5
CVSS Score
Published: March 31, 2026 at 02:57 PM UTC
Updated: July 24, 2026 at 08:20 PM UTC
2 products affected across 2 vendorsFlxSearch Guard FLX

Using Search Guard FLX by floragunn?

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In Search Guard FLX versions from 1.0.0 up to 4.0.1, the audit logging feature might log user credentials from users logging into Kibana.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Flx· Search Guard
95%
1.0.0 ≤ v < 4.1.0
Affected range stops below 4.1.0, so it looks safe — our inference, not a vendor statement
Search Guard FLX· Floragunn
60%
1.0.0 ≤ v ≤ 4.0.11.0.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: cverecord
https://search-guard.com/cve-advisory/
Release Notes
Source: cverecord
https://docs.search-guard.com/latest/changelog-searchguard-flx-4_1_0

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-532CWE-522

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