CVE-2026-90447

MediumCVSS 6.5/10Last modified Oct 2, 2026

Description

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-290

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published: Sep 11, 2026
Last modified: Oct 2, 2026
NVD status: Awaiting Analysis

Related CVEs from 2026

CVE-2026-904486.5A deployment mode intended to expose only read access to stored data proxies a set of application programming interface routes without restr CVE-2026-904496.5When a particular authentication mode is configured, the reverse proxy forwards requests for a bundled third-party administrative interface CVE-2026-90457.8During an internal security assessment, a potential vulnerability was discovered in Lenovo Accessories and Display Manager for Enterprise fo CVE-2026-904504.3The application's role-authorization lookup defaults to granting access when a request handler's name is not present in its table of role re CVE-2026-904515.9An example environment-configuration file ships with a fixed, publicly-known secret value used to sign authentication cookies for a bundled CVE-2026-904525.3Requests from the reverse proxy to the identity-provider service for token discovery, introspection, and credential exchange do not verify t CVE-2026-904533.5A file-upload handler redirects the authenticated client's browser to a URL taken directly from that same request's Referer header, without CVE-2026-904544.3A deployment mode intended to expose only read access to a bundled packet-analysis component's interface denies a list of write-capable rout CVE-2026-904553.7A prior update that raised a bundled HTTP client library to a version remediating known vulnerabilities was later reverted, reintroducing th CVE-2026-904568.1An example environment-configuration file for a bundled inventory-management component ships with a fixed, publicly-known administrative pas CVE-2026-904576.2The administrative password is hashed using a comparatively weak, fast algorithm for the credential store backing one authentication path, a CVE-2026-904585.4OpenStack Ironic before 39.0.1 allows DELETE and GET via vendor_passthru, e.g., to delete accounts from the BMC's Redfish service.