CVE-2026-33898— Incus 授权问题漏洞

Local Incus UI web server vulnerable to nuthentication bypass

Incus is a system container and virtual machine manager. Prior to version 6.23.0, the web server spawned by `incus webui` incorrectly validates the authentication token such that an invalid value will be accepted. `incus webui` runs a local web server on a random localhost port. For authentication, it provides the user with a URL containing an authentication token. When accessed with that token, Incus creates a cookie persisting that token without needing to include it in subsequent HTTP requests. While the Incus client correctly validates the value of the cookie, it does not correctly validate the token when passed int the URL. This allows for an attacker able to locate and talk to the temporary web server on localhost to have as much access to Incus as the user who ran `incus webui`. This can lead to privilege escalation by another local user or an access to the user's Incus instances and possibly system resources by a remote attack able to trick the local user into interacting with the Incus UI web server. Version 6.23.0 patches the issue.

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

认证机制不恰当

Incus 授权问题漏洞

Incus是LXC开源的一个系统容器和虚拟机管理器。 Incus 6.23.0之前版本存在授权问题漏洞，该漏洞源于身份验证令牌验证不当，可能导致本地攻击者获得与运行incus webui用户相同的Incus访问权限，进而导致权限提升或远程攻击者访问用户Incus实例及系统资源。

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