CVE-2026-90451

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.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-254-01.json
https://www.cisa.gov/news-events/ics-advisories/icsa-26-254-01

Configurations

No configuration.

History

02 Oct 2026, 22:16

Type	Values Removed	Values Added
References		() https://www.cisa.gov/news-events/ics-advisories/icsa-26-254-01 -
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.9

Information

Published : 2026-09-11 22:16

Updated : 2026-10-02 22:16

NVD link : CVE-2026-90451

Mitre link : CVE-2026-90451

CVE.ORG link : CVE-2026-90451

JSON object : View

Products Affected

No product.

CWE

CWE-1392

Use of Default Credentials

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