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CVE-2026-49091

Improper Output Neutralization for Logs in Kibana Leading to Log Injection

Published: Jul 1, 2026Updated: Jul 2, 2026 Sources: CVE List NVDCWE-116
8.0HIGH
NVD MITRE
EPSS Score
0.2%
Top 89.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:LUI:RS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-116

Affected Products

Elastic
commercial·USaka elasticsearch co., elastic.co
Kibana
Databases
and 1 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2026-49091?We can run the check for you — a free external exposure review, no install. Check my exposure

References

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

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