CVE-2026-59093 Weaviate < 1.38.0 - Privilege Escalation via Unchecked Permissions in RBAC Role Assignment
A user with role assignment permissions can escalate to full administrative control by assigning high-privilege roles to themselves due to missing permission checks.
- 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-2026-59093?
CVE-2026-59093 is a high-severity vulnerability in weaviate, published on 2 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Weaviate before 1.38.0 does not verify that a principal performing an RBAC role assignment holds the permissions granted by the assigned role. The assignRoleToUser and assignRoleToGroup handlers (POST /authz/users/{id}/assign and /authz/groups/{id}/assign) authorize only that the caller may assign roles to the target user or group, not the permissions contained in the assigned roles, unlike role creation which enforces that a user can only create roles with permissions less than or equal to its own. A user holding only the delegated assign_and_revoke_users or assign_and_revoke_groups permission can assign the built-in admin role, or any high-privilege custom role, to itself or others, escalating to full administrative control of the database.
Weakness: CWE-266
Which versions are affected by CVE-2026-59093?
It affects 1 product.
Products include Weaviate Weaviate.
How do I fix CVE-2026-59093?
No fix has been published for CVE-2026-59093 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-59093 being exploited?
There is no known exploitation of CVE-2026-59093 in the wild and no public exploit code.
Other vulnerabilities in weaviate
Sources
Also known as GHSA-667j-56pf-pq9c, MINI-2238-6m3j-32hv, MINI-39gg-8777-m7fq, MINI-3j8h-rv3p-x2c2, MINI-4x69-56p4-jrhf, MINI-6jh2-f3hg-w8mx and 11 more.