Advisories for Golang/Github.com/L3montree-Dev/Devguard package

2026

DevGuard has improper authorization on public assets

On a DevGuard API instance with one or more public assets, any authenticated user — including users from a different organization with no membership or role in the affected org/project — can create, update, reapply, and delete VEX rules on those public assets. The same flaw affects the other vulnerability-triage write endpoints exposed under a public asset, including: VEX rule create / update / reapply / delete Dependency-vuln event creation …

DevGuard has an unauthenticated identity assertion via `X-Admin-Token` header

The SessionMiddleware accepts a client-supplied X-Admin-Token HTTP request header and uses its raw string value as the authenticated userID when no Kratos session cookie is present. An unauthenticated attacker who knows or can guess a target user's Kratos identity UUID can issue requests as that user. Where the target user is an organisation admin or owner, this gives the attacker full control over that organisation's DevGuard resources.