CVE-2026-81035 Midday Missing Owner Check on Team Deletion
Any team member can delete the team and access associated bank connection tokens due to missing owner role checks in the API.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-81035?
CVE-2026-81035 is a high-severity missing authorization vulnerability in midday-ai midday, published on 26 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Midday allows any member of a team to delete it. The delete procedure in apps/api/src/trpc/routers/team.ts authorises the caller with the team-access helper, which returns true for every row in the team-membership table irrespective of the role it records, and the data-layer function it calls re-checks the same helper and nothing else. The neighbouring procedures that remove or update a member in the same router each resolve the caller's role and refuse the request unless it is owner, so the check exists in the file and is not applied to deletion. Member is the role an invited user receives, so any invitee can remove the team and every record scoped to it, and the deletion enqueues the cleanup job with the stored bank-connection tokens, which the job then uses against the connected providers. The update procedure in the same router carries no role check either.
Weakness: CWE-862
Which versions are affected by CVE-2026-81035?
How do I fix CVE-2026-81035?
No fix has been published for CVE-2026-81035 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-81035 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-81035 exists.
Sources
Also known as GHSA-432v-m2wc-4w5v.