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    CVE-2020-12690

    An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The list of roles provided for an OAuth1 access token is silently ignored. Thus, when an access token is used to request a keystone token, the keystone token contains every role assignment the creator had for the project. This results in the provided keystone token having more role assignments than the creator intended, possibly giving unintended escalated access.

    Published:May 6, 2020
    Last Modified:Nov 21, 2024
    EPS:May 6, 2020
    EPSS Score:0.00817
    CVSS Score:8.8

    Affected Products

    Vendor
    Openstack
    Product
    Keystone
    Vendor
    Redhat
    Product
    Openstack

    Exploits

    No exploit reference

    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-2026-42999 (CVSS 6) — An issue was discovered in OpenStack Keystone before 29.0.2. The Keystone RBAC policy enforcer in enforce_call…
    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-2026-43001 (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 …

    References

    http://www.openwall.com/lists/oss-security/2020/05/07/3
    https://bugs.launchpad.net/keystone/+bug/1873290
    https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa%40%3Ccommits.druid.apache.org%3E
    https://lists.apache.org/thread.html/re4ffc55cd2f1b55a26e07c83b3c22c3fe4bae6054d000a57fb48d8c2%40%3Ccommits.druid.apache.org%3E
    https://security.openstack.org/ossa/OSSA-2020-005.html
    https://usn.ubuntu.com/4480-1/
    https://www.openwall.com/lists/oss-security/2020/05/06/6
    http://www.openwall.com/lists/oss-security/2020/05/07/3
    https://bugs.launchpad.net/keystone/+bug/1873290
    https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa%40%3Ccommits.druid.apache.org%3E
    https://lists.apache.org/thread.html/re4ffc55cd2f1b55a26e07c83b3c22c3fe4bae6054d000a57fb48d8c2%40%3Ccommits.druid.apache.org%3E
    https://security.openstack.org/ossa/OSSA-2020-005.html
    https://usn.ubuntu.com/4480-1/
    https://www.openwall.com/lists/oss-security/2020/05/06/6

    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