CVE-2026-90451
Use of Default Credentials in Malcolm
CVSS Score
5.9
EPSS Score
0.5%
EPSS Percentile
44th
An example environment-configuration file ships with a fixed, publicly-known secret value used to sign authentication cookies for a bundled packet-analysis component. A deployment that copies this example file into active configuration without running the setup routine that regenerates the value will use the known default, allowing an attacker aware of the default to forge valid authentication cookies for that component.
| CWE | CWE-1392 |
| Vendor | cisa |
| Product | malcolm |
| Published | Sep 11, 2026 |
| Last Updated | Oct 2, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Affected Versions
CISA / Malcolm
0 < v26.06.0