CVE-2026-49091: Improper Output Neutralization for Logs in Kibana Leading to Log Injection
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-49091?
The severity of CVE-2026-49091 is classified as high with a score of 8.
How do I fix CVE-2026-49091?
To fix CVE-2026-49091, update to the latest version of Kibana where the vulnerability has been addressed.
What impact does CVE-2026-49091 have on system security?
CVE-2026-49091 can lead to log injection which compromises the integrity of logging systems and could allow attackers to tamper with log files.
Who is affected by CVE-2026-49091?
Users of Elastic Kibana are affected by CVE-2026-49091 if they are using a vulnerable version of the software.
What types of attacks can exploit CVE-2026-49091?
CVE-2026-49091 can be exploited through log injection attacks, allowing an attacker to manipulate logs that are viewed in a terminal.