CVE-2026-42572: CWE-639: Authorization Bypass Through User-Controlled Key in hatchet-dev hatchet
Hatchet versions prior to 0. 83. 39 contain an authorization bypass vulnerability in the GET /api/v1/stable/dags/tasks endpoint. This flaw allows an authenticated user from one tenant to access task metadata belonging to another tenant by specifying that tenant's UUID and DAG UUID. The issue arises from a missing authorization directive causing the tenant-membership check to be skipped. The vulnerability has a medium severity with a CVSS score of 5. 3 and is fixed starting in version 0. 83. 39.
AI Analysis
Technical Summary
CVE-2026-42572 is an authorization bypass vulnerability in the Hatchet platform before version 0.83.39. The GET /api/v1/stable/dags/tasks endpoint lacks proper authorization checks, allowing a user authenticated to one tenant to query task metadata for DAGs belonging to other tenants by supplying their UUIDs. This occurs because the tenant-membership verification was omitted for this route. The vulnerability is classified under CWE-639 (Authorization Bypass Through User-Controlled Key) and CWE-863 (Incorrect Authorization). It has a CVSS 3.1 base score of 5.3, indicating medium severity. The issue is resolved in Hatchet version 0.83.39.
Potential Impact
An attacker authenticated to any tenant on the same Hatchet instance can access sensitive task metadata of other tenants without authorization. This could lead to unauthorized disclosure of information related to background tasks and workflows managed by Hatchet. There is no indication of integrity or availability impact. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade Hatchet to version 0.83.39 or later, where this authorization bypass vulnerability is fixed. Since no official patch link or advisory is provided, verify the version upgrade from the vendor's release notes or repository. Until upgraded, restrict access to the affected endpoint or implement additional access controls if possible.
CVE-2026-42572: CWE-639: Authorization Bypass Through User-Controlled Key in hatchet-dev hatchet
Description
Hatchet versions prior to 0. 83. 39 contain an authorization bypass vulnerability in the GET /api/v1/stable/dags/tasks endpoint. This flaw allows an authenticated user from one tenant to access task metadata belonging to another tenant by specifying that tenant's UUID and DAG UUID. The issue arises from a missing authorization directive causing the tenant-membership check to be skipped. The vulnerability has a medium severity with a CVSS score of 5. 3 and is fixed starting in version 0. 83. 39.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-42572 is an authorization bypass vulnerability in the Hatchet platform before version 0.83.39. The GET /api/v1/stable/dags/tasks endpoint lacks proper authorization checks, allowing a user authenticated to one tenant to query task metadata for DAGs belonging to other tenants by supplying their UUIDs. This occurs because the tenant-membership verification was omitted for this route. The vulnerability is classified under CWE-639 (Authorization Bypass Through User-Controlled Key) and CWE-863 (Incorrect Authorization). It has a CVSS 3.1 base score of 5.3, indicating medium severity. The issue is resolved in Hatchet version 0.83.39.
Potential Impact
An attacker authenticated to any tenant on the same Hatchet instance can access sensitive task metadata of other tenants without authorization. This could lead to unauthorized disclosure of information related to background tasks and workflows managed by Hatchet. There is no indication of integrity or availability impact. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade Hatchet to version 0.83.39 or later, where this authorization bypass vulnerability is fixed. Since no official patch link or advisory is provided, verify the version upgrade from the vendor's release notes or repository. Until upgraded, restrict access to the affected endpoint or implement additional access controls if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-28T17:26:12.084Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a06082eec166c07b0fd3b57
Added to database: 5/14/2026, 5:36:46 PM
Last enriched: 5/14/2026, 5:52:08 PM
Last updated: 5/14/2026, 6:43:32 PM
Views: 2
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