Medium severity · published Aug 17, 2026
CVE-2026-44846
JumpServer: Privilege Overwrite via Organization Invite Logic Flaw
6.2
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L
Attack vector
Network
Complexity
High
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JU
jumpserver · jumpserver
< 4.10.17 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-44846
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-44846
github.com
https://github.com/jumpserver/jumpserver/commit/1803be11a410eb99cd171d47053b697a119c4a50
github.com
https://github.com/jumpserver/jumpserver/pull/16662
github.com
https://github.com/jumpserver/jumpserver/releases/tag/v4.10.17
github.com
https://github.com/jumpserver/jumpserver/security/advisories/GHSA-j836-99w5-523r
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