CVE-2026-55163

Lemur manages TLS certificate creation. Prior to 1.9.2, PUT /api/1/roles/ in lemur/roles/views.py:298 authorized updates with RoleMemberPermission(role_id), which allowed either an administrator or any existing member of the target role. The handler passed data["users"] and data["name"] to service.update, allowing a non-admin member to add or remove other users and rename the role. This enabled lateral privilege grants within roles that control certificate and authority access and could deny access by removing legitimate members. The DELETE handler already required admin_permission, confirming that the weaker PUT authorization was inconsistent. The fix applies the same administrator-only requirement to the PUT handler. This issue is fixed in version 1.9.2.

CVSS v3 6.3 MEDIUM

6.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/Netflix/lemur/commit/9523a3b9cb3170ec9f795162b8c60e1ad3c4f9ce
https://github.com/Netflix/lemur/releases/tag/v1.9.2
https://github.com/Netflix/lemur/security/advisories/GHSA-x3vf-mgxj-7785

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-18 19:16

Updated : 2026-09-08 21:02

NVD link : CVE-2026-55163

Mitre link : CVE-2026-55163

CVE.ORG link : CVE-2026-55163

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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