PT-2026-29281 · Florian Bruhin · Search Guard Flx

Published 2026-03-31 · Updated 2026-03-31 · CVE-2026-4819

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Search Guard FLX versions 1.0.0 through 4.0.1

Description The audit logging feature in Search Guard FLX may log user credentials from users logging into Kibana.

Recommendations Update to a version later than 4.0.1.

Fix

Insertion into Log File

Insufficiently Protected Credentials

Weakness Enumeration

CWE-532

CWE-522

Related Identifiers

CVE-2026-4819

Affected Products

Search Guard Flx

References · 4

• https://search-guard.com/cve-advisory · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-4819 · Security Note
• https://docs.search-guard.com/latest/changelog-searchguard-flx-4_1_0 · Note
• https://twitter.com/CVEnew/status/2039004424232657299 · Twitter Post