CVE-2026-107333 Malcolm nginx - Broken Access Control

Malcolm nginx based reverse proxy contains a broken access control caused by URL path normalization inconsistency between Lua RBAC layer and nginx routing, letting authenticated users bypass role restrictions to access admin endpoints.

CVSS base score 8.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.98% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Published
8 October 2026
Updated
15 October 2026
Weakness
CWE-863

Vendor fix

Update to the latest version with fixed URL path normalization in RBAC authorization.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs