CVE-2023-40027

Description

### Summary When `ui.isAccessAllowed` is `undefined`, the `adminMeta` GraphQL query is publicly accessible, that is to say, no session is required for the query. This is different to the behaviour of the default AdminUI middleware, which by default will only be publicly accessible if a `session` strategy is not defined. ### Impact This vulnerability does not affect developers using the `@keystone-6/auth` package, or any users that have written their own `ui.isAccessAllowed` (that is to say, you are unaffected if `ui.isAccessAllowed` is defined). This vulnerability does affect developers who thought that their `session` strategy will, by default, enforce that `adminMeta` is inaccessible by the public in accordance with that strategy; akin to the behaviour of the AdminUI middleware. ### Patches This vulnerability has been patched in `@keystone-6/core` version `5.5.1`. ### Workarounds You can opt to write your own `isAccessAllowed` to work-around this vulnerability. ### References Pull request https://github.com/keystonejs/keystone/pull/8771

How to fix CVE-2023-40027

To remediate CVE-2023-40027, upgrade the affected package to a fixed version below.

• —upgrade to 5.5.1 or later

Is CVE-2023-40027 being exploited?

Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 5.5.1

CVSS scores