CVE-2026-107333

Status: Awaiting AnalysisHigh (8.1)—

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.

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Base score: 8.1

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.98%
Percentile among all scored CVEs: 61
Score date: 10/13/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1210 Exploitation of Remote Serviceslateral movement75 %
Primary impactT1078 Valid Accountsstealth · persistence · privilege escalation · initial access85 %
Secondary impactT1565 Data Manipulationimpact70 %

Autenticado explota inconsistencia de normalización de rutas en proxy nginx para eludir RBAC y acceder a endpoints restringidos (T1078: uso indebido de cuenta autenticada; T1565: potencial manipulación de datos a través de upload/interfaces de gestión).

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Privileged Account Management Network Segmentation Application Developer Guidance Active Directory Configuration Vulnerability Scanning User Training

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Malcolm — Malcolm^AI

CWEs

CWE-863

References

Raw JSON (NVD)

Show

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  "lastModified": "2026-10-08T21:03:43.847",
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