CVE-2026-49091

HighCVSS 8.0/10Last modified Oct 25, 2026

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.

Metrics

CVSS 3.1 8.0/10CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-116

Affected software

Vendor	Product	Versions
Elastic	Kibana	>= 8.0.0, <= 8.11.0; >= 7.0.0, <= 7.17.14

References

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

Timeline

Published: Jul 1, 2026
Last modified: Oct 25, 2026
NVD status: Analyzed

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