CVE-2026-49091

HIGH

Improper Output Neutralization for Logs in Kibana Leading to Log Injection

Title source: cna

Description

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.

References (1)

Core 1

Core References

https://discuss.elastic.co/t/kibana-7-17-15-8-11-1-security-update-esa-2026-53

Scores

CVSS v3 8.0

EPSS 0.0020

EPSS Percentile 10.0%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-116

Status published

Products (3)

Elastic/Kibana 7.0.0 - 7.17.14

elastic/kibana 7.0.0 - 7.17.15

Elastic/Kibana 8.0.0 - 8.11.0

Published Jul 01, 2026

Tracked Since Jul 01, 2026