CVE-2026-49091 — HIGH (8.0)

Q: How severe is CVE-2026-49091?

CVE-2026-49091 has been rated HIGH with a CVSS base score of 8.0/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-49091?

Check the references section above for vendor advisories and patch information. Affected products include: Elastic Kibana.

Vulnerability 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.

CVSS Score

8.0

HIGH

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Elastic	Kibana	>= 7.0.0, < 7.17.15

Related Weaknesses (CWE)

CWE-116

References

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

FAQ

What is CVE-2026-49091?

CVE-2026-49091 is a vulnerability with a CVSS score of 8.0 (HIGH). 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 ...

How severe is CVE-2026-49091?

CVE-2026-49091 has been rated HIGH with a CVSS base score of 8.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-49091?

Check the references section above for vendor advisories and patch information. Affected products include: Elastic Kibana.