loft-sh loft up to 4.3.9/4.4.1/4.5.2 authorization

Summaryinfo

A vulnerability was found in loft-sh loft up to 4.3.9/4.4.1/4.5.2. It has been declared as critical. The affected element is an unknown function. Executing a manipulation can lead to authorization. This vulnerability is handled as CVE-2026-22806. The attack can be executed remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in loft-sh loft up to 4.3.9/4.4.1/4.5.2 and classified as critical. This vulnerability affects some unknown processing. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

vCluster Platform provides a Kubernetes platform for managing virtual clusters, multi-tenancy, and cluster sharing. Prior to versions 4.6.0, 4.5.4, 4.4.2, and 4.3.10, when an access key is created with a limited scope, the scope can be bypassed to access resources outside of it. However, the user still cannot access resources beyond what is accessible to the owner of the access key. Versions 4.6.0, 4.5.4, 4.4.2, and 4.3.10 fix the vulnerability. Some other mitigations are available. Users can limit exposure by reviewing access keys which are scoped and ensuring any users with access to them have appropriate permissions set. Creating automation users with very limited permissions and using access keys for these automation users can be used as a temporary workaround where upgrading is not immediately possible but scoped access keys are needed.

The advisory is available at github.com. This vulnerability was named CVE-2026-22806 since 01/09/2026. The exploitation appears to be easy. The attack can be initiated remotely. The exploitation needs additional levels of successful authentication. The technical details are unknown and an exploit is not available.

Upgrading to version 4.3.10, 4.4.2 or 4.5.3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-4960). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• loft-sh

Name

• loft

Version

• 4.3.0
• 4.3.1
• 4.3.2
• 4.3.3
• 4.3.4
• 4.3.5
• 4.3.6
• 4.3.7
• 4.3.8
• 4.3.9
• 4.4.0
• 4.4.1
• 4.5.0
• 4.5.1
• 4.5.2

Website

• Product: https://github.com/loft-sh/loft/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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