CVE-2026-4819 — MEDIUM (4.9)

Q: What is CVE-2026-4819?

CVE-2026-4819 is a vulnerability with a CVSS score of 4.9 (MEDIUM). 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.

Q: How severe is CVE-2026-4819?

CVE-2026-4819 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-4819?

Check the references section above for vendor advisories and patch information. Affected products include: Search-Guard Flx.

Vulnerability 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.

CVSS Score

4.9

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Search-Guard	Flx	>= 1.0.0, < 4.1.0

Related Weaknesses (CWE)

CWE-532 CWE-522

References

https://docs.search-guard.com/latest/changelog-searchguard-flx-4_1_0Release Notes
https://search-guard.com/cve-advisory/Vendor Advisory

FAQ

What is CVE-2026-4819?

CVE-2026-4819 is a vulnerability with a CVSS score of 4.9 (MEDIUM). 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.

How severe is CVE-2026-4819?

CVE-2026-4819 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-4819?

Check the references section above for vendor advisories and patch information. Affected products include: Search-Guard Flx.