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    CVE-2026-90460

    An issue was discovered in OpenStack Keystone before 29.0.3. Tokens obtained via delegated authentication methods (EC2 credentials, application credentials, OAuth1 access tokens, and trusts) are not blocked from creating, modifying, or deleting credentials via the /v3/credentials API. EC2-derived tokens can additionally read credential blobs, exposing TOTP MFA seeds and other secrets. Also, PATCH /v3/credentials does not validate the requested post-update project_id, allowing any delegated token to move a credential to an unauthorized project. All Keystone deployments using delegated authentication are affected.

    Published:Sep 11, 2026
    Last Modified:Oct 13, 2026
    EPS:Sep 11, 2026
    EPSS Score:0.00554
    CVSS Score:7.6

    Affected Products

    Vendor
    Openstack
    Product
    Keystone

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-863 Incorrect Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-80183 (CVSS 7.1) — In OpenStack Keystone before 29.0.3, any authenticated user holding role:reader on any project can list every …
    CVE-2026-80184 (CVSS 7.6) — In OpenStack Keystone before 29.0.3, tokens obtained via delegated authentication mechanisms (OAuth1 access to…
    CVE-2026-80182 (CVSS 7.6) — In OpenStack Keystone before 29.0.3, tokens obtained via OAuth1 access token, application credential, or trust…
    CVE-2026-2035364 (CVSS 8.1) — A flaw was found in OpenStack Keystone where delegation boundary enforcement is incomplete across trust, appli…
    CVE-2026-43000 (CVSS 6) — An issue was discovered in OpenStack Keystone before 29.0.2. When combined with an application credential impe…
    CVE-2026-42998 (CVSS 6) — An issue was discovered in OpenStack Keystone before 29.0.2. The Keystone application credential authenticatio…
    CVE-2026-44394 (CVSS 6) — An issue was discovered in OpenStack Keystone before 29.0.2. The Keystone federated token rescoping mechanism …
    CVE-2026-42999 (CVSS 6) — An issue was discovered in OpenStack Keystone before 29.0.2. The Keystone RBAC policy enforcer in enforce_call…
    CVE-2026-43001 (CVSS 7.9) — An issue was discovered in OpenStack Keystone before 29.0.2. POST /v3/credentials did not validate that the ca…
    CVE-2026-40683 (CVSS 7.7) — In OpenStack Keystone before 28.0.1, the LDAP identity backend does not convert the user enabled attribute to …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-90460 — Openstack (High 7.6) | CVE-DB