CVE-2026-107334

Status: Awaiting AnalysisMedium (5.4)—

Malcolm's nginx Lua role-based access control (RBAC) layer decides whether an authenticated user may reach a role-restricted path (e.g. /htadmin, /auth, /admin_login, /arkime/api/esadmin, NetBox, upload endpoints) by pattern-matching the raw, percent-encoded request URI. Nginx itself, however, selects which location block actually serves the request using the percent-decoded, normalized URI. Because the RBAC check never percent-decodes its input, an authenticated low-privilege user can request an admin-only path using percent-encoding (e.g. /%68tadmin.php) and have nginx route it to the restricted location while the Lua RBAC gate evaluating the un-decoded raw string finds no matching restriction and grants access.

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Base score: 5.4

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.21%
Percentile among all scored CVEs: 11
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 remoto (PR:L, AV:N) explota descodificación inconsistente en nginx/Lua para saltarse RBAC y acceder a rutas restringidas de administrador. Resulta en escalada de privilegios lógica y potencial manipulación de datos en endpoints admin.

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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