CVE-2026-49091
Published:July 01, 2026
Updated:July 21, 2026
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 Packages
https://github.com/elastic/kibana.git (GITHUB):
Affected version(s) >=v8.0.0 <v8.11.1Fix Suggestion:
Update to version v8.11.1https://github.com/elastic/kibana.git (GITHUB):
Affected version(s) >=v0.0.4 <v7.17.15Fix Suggestion:
Update to version v7.17.15Related Resources (1)
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Contact UsCVSS v4
Base Score:
8.9
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
8
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Encoding or Escaping of Output
EPSS
Base Score:
0.20