Auth bypass in Jumpserver
CVE-2026-44846
JumpServer is an open source bastion host and an operation and maintenance security audit system. Prior to 4.10.17, a user with the users.invite_user permission can submit an existing member to POST /api/v1/users/users/invite/, causing the organization invitation logic in apps/users/api/user.py to execute user.org_roles.set(org_roles) and replace the member's existing organization roles, which can escalate privileges or downgrade administrators. This issue is fixed in version 4.10.17.
Vulnerability class: Broken Access Control
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L.
Affected products
- Jumpserver — versions < 4.10.17
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2026-44846?
- CVE-2026-44846 is a medium-severity vulnerability in Jumpserver, classified under Incorrect Authorization. CVSS score: 6.2/10. Published 2026-08-17.
- How severe is CVE-2026-44846?
- Medium severity. CVSS v3 base score is 6.2 out of 10.