CVE-2026-59093
Weaviate < 1.38.0 - Privilege Escalation via Unchecked Permissions in RBAC Role Assignment
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.
INFO
Published Date :
July 2, 2026, 8:17 p.m.
Last Modified :
July 14, 2026, 11:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update Weaviate to version 1.38.0 or later.
- Verify RBAC role assignment logic.
- Limit role assignment privileges.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-59093.
| URL | Resource |
|---|---|
| https://github.com/weaviate/weaviate/commit/2c75f6fb217631f7751c4b2a7d37a488cef13edb | Patch |
| https://github.com/weaviate/weaviate/pull/11493 | Issue Tracking Patch |
| https://github.com/weaviate/weaviate/releases/tag/v1.38.0 | Product Release Notes |
| https://www.vulncheck.com/advisories/weaviate-privilege-escalation-via-unchecked-permissions-in-rbac-role-assignment | Patch Release Notes Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-59093 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-59093
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-59093 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-59093 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Jul. 14, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://github.com/weaviate/weaviate', 'vendor': 'weaviate', 'product': 'weaviate', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.38.0', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] [{'repo': 'https://github.com/weaviate/weaviate', 'vendor': 'weaviate', 'product': 'weaviate', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.38.0', 'versionType': 'semver'}], 'packageURL': 'pkg:github/weaviate/weaviate', 'defaultStatus': 'unaffected'}] -
Initial Analysis by [email protected]
Jul. 07, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:weaviate:weaviate:*:*:*:*:*:*:*:* versions up to (excluding) 1.38.0 Added Reference Type VulnCheck: https://github.com/weaviate/weaviate/commit/2c75f6fb217631f7751c4b2a7d37a488cef13edb Types: Patch Added Reference Type VulnCheck: https://github.com/weaviate/weaviate/pull/11493 Types: Issue Tracking, Patch Added Reference Type VulnCheck: https://github.com/weaviate/weaviate/releases/tag/v1.38.0 Types: Product, Release Notes Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/weaviate-privilege-escalation-via-unchecked-permissions-in-rbac-role-assignment Types: Patch, Release Notes, Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 06, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-59093', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-06T12:26:29.214163Z'} -
New CVE Received by [email protected]
Jul. 02, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://github.com/weaviate/weaviate', 'vendor': 'weaviate', 'product': 'weaviate', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.38.0', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-266 Added Reference https://github.com/weaviate/weaviate/commit/2c75f6fb217631f7751c4b2a7d37a488cef13edb Added Reference https://github.com/weaviate/weaviate/pull/11493 Added Reference https://github.com/weaviate/weaviate/releases/tag/v1.38.0 Added Reference https://www.vulncheck.com/advisories/weaviate-privilege-escalation-via-unchecked-permissions-in-rbac-role-assignment