CVE-2026-93593 ArcadeDB before 26.9.1 TimeSeries ACL Bypass via Type Permission
An authenticated low-privilege user can bypass ACL restrictions to read or insert TimeSeries data in ArcadeDB due to flawed permission resolution logic.
- 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-2026-93593?
CVE-2026-93593 is a high-severity missing authorization vulnerability in ArcadeData arcadedb, published on 18 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
ArcadeDB before 26.9.1 fails to enforce security-group types ACL entries for TimeSeries types because the ACL resolver builds permissions from bucket IDs, but TimeSeries types do not own normal record buckets. An authenticated low-privilege user can read or insert TimeSeries samples despite explicit deny rules by exploiting the missing type-name-based access check that causes permission lookups to fail open.
Weakness: CWE-863
Which versions are affected by CVE-2026-93593?
How do I fix CVE-2026-93593?
No fix has been published for CVE-2026-93593 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-2026-93593 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-93593 exists.
Sources
Also known as GHSA-46xr-4762-9x3m, GHSA-wjhv-79gv-2pqg.