Authentication Bypass Affecting kibana-9.1 package, versions <9.1.10-r6


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.27% (19th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-KIBANA91-15363469
  • published27 Feb 2026
  • disclosed25 Feb 2026

Introduced: 25 Feb 2026

CVE-2026-27700  (opens in a new tab)
CWE-290  (opens in a new tab)
CWE-345  (opens in a new tab)

How to fix?

Upgrade Chainguard kibana-9.1 to version 9.1.10-r6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kibana-9.1 package and not the kibana-9.1 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

Hono is a Web application framework that provides support for any JavaScript runtime. In versions 4.12.0 and 4.12.1, when using the AWS Lambda adapter (hono/aws-lambda) behind an Application Load Balancer (ALB), the getConnInfo() function incorrectly selected the first value from the X-Forwarded-For header. Because AWS ALB appends the real client IP address to the end of the X-Forwarded-For header, the first value can be attacker-controlled. This could allow IP-based access control mechanisms (such as the ipRestriction middleware) to be bypassed. Version 4.12.2 patches the issue.

CVSS Base Scores

version 3.1