CVE-2026-90447

A routing rule selects between two different authentication mechanisms for the same downstream service based on the value of a client-supplied request header, rather than on any property the client cannot control. An authenticated user in possession of a shared service credential can set this header to route around the primary role-based authorization check and reach the alternate path's fixed, elevated role instead. This allows a low-privileged authenticated attacker who knows the shared credential to perform actions reserved for a higher-privileged role.

CVSS

No CVSS.

References

Link	Resource
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-254-01.json

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-11 22:16

Updated : 2026-09-14 17:17

NVD link : CVE-2026-90447

Mitre link : CVE-2026-90447

CVE.ORG link : CVE-2026-90447

JSON object : View

Products Affected

No product.

CWE

CWE-290

Authentication Bypass by Spoofing

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