CVE-2026-107333 (GCVE-0-2026-107333)

Vulnerability from cvelistv5 – Published: 2026-10-08 17:23 – Updated: 2026-10-08 19:08
VLAI
Title
Incorrect Authorization in Malcolm
Summary
Malcolm's nginx based reverse proxy contains a URL path normalization inconsistency between its Lua based role-based access control (RBAC) authorization layer and nginx's own request routing logic. An authenticated user can craft a specially formatted request path to bypass role-based restrictions and reach administrative or role gated endpoints they should not have access to. This affects all restricted paths protected by the RBAC authorization layer, including file upload, PHP server, htadmin, and authentication management interfaces.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:07 UTC
CWE
  • CWE-863 - Incorrect Authorization
Assigner
icscert CNA under the icscert root
CNA scorecard C 75/100 over 352 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
CISA Malcolm Affected: 0 , ≤ 26.07.1 (custom)
Unaffected: 26.08.0
guessed Create a notification for this product.
Date Public
2026-10-07 19:02
Credits
Seth Grover
Show details on NVD website
To clipboard 

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