An Improper Input Validation vulnerability exists in the user websocket handler of MAAS. An authenticated, unprivileged attacker can intercept a user.update websocket request and inject the is_superuser property set to true. The server improperly validates this input, allowing the attacker to self-promote to an administrator role. This results in full administrative control over the MAAS deployment.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 6.5 · canonicalNVD modified 2026-10-18 17:10
Affected (CPE criteria) 1
cpe:2.3:a:canonical:maas:*:*:*:*:*:*:*:*
References 1
- https://bugs.launchpad.net/maas/+bug/2115714 Third Party Advisory