CVE-2026-49091
Improper Output Neutralization for Logs in Kibana Leading to Log Injection
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.
INFO
Published Date :
July 1, 2026, 5:21 p.m.
Last Modified :
July 1, 2026, 5:21 p.m.
Remotely Exploit :
Yes !
Source :
elastic
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 271b6943-45a9-4f3a-ab4e-976f3fa05b5a | ||||
| CVSS 3.1 | HIGH | MITRE-CVE |
Solution
- Validate and sanitize all user-supplied input for logs.
- Ensure log viewers correctly escape or neutralize control sequences.
- Update Kibana to the latest version.
- Consult Kibana security advisories for specific guidance.
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CVE-2026-49091 vulnerability anywhere in the article.