CVE-2026-49091
High
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.
SeverityHigh
CVSS8.0
Exploit probability—
Product
Elastic Kibana
PublishedJul 1, 2026
First seenJul 1, 2026
Weakness typeCWE-116CWE-116
How to fix
Update
- elastic kibana7.17.15, 8.11.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| elastic kibana | 7.0.0 ≤ v < 7.17.15, 8.0.0 ≤ v < 8.11.1 | 7.17.15, 8.11.1 |
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