CVE-2026-49091 HIGH

CVE-2026-49091: Improper Output Neutralization for Logs in Kibana Leading to Log Injection

Vendor Elastic
Product Kibana
Weakness CWE-116
Published July 1, 2026
Last update July 2, 2026
View on NVD All CVEs

CVSS base score

8.0/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction Required
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Improper Output Neutralization for Logs (CWE-117) in Kibana can lead to log injection via Log Injection-Tampering-Forging (CAPEC-93). An attacker can supply specially crafted input that is written to log files without proper neutralization. When the log files are subsequently viewed in a terminal that interprets control sequences, the injected content may alter the displayed log data.

Key dates

02Disclosure timeline

July 1, 2026 CVE published
July 2, 2026 Record updated