{
  "threat_severity" : "Low",
  "public_date" : "2026-04-07T15:00:00Z",
  "bugzilla" : {
    "description" : "openstack-keystone: OpenStack Keystone: Privilege escalation through EC2 credential creation",
    "id" : "2451037",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2451037"
  },
  "cvss3" : {
    "cvss3_base_score" : "3.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N",
    "status" : "verified"
  },
  "cwe" : "CWE-266",
  "details" : [ "An issue was discovered in OpenStack Keystone 14 through 26 before 26.1.1, 27.0.0, 28.0.0, and 29.0.0. Restricted application credentials can create EC2 credentials. By using a restricted application credential to call the EC2 credential creation API, an authenticated user with only a reader role may obtain an EC2/S3 credential that carries the full set of the parent user's S3 permissions, effectively bypassing the role restrictions imposed on the application credential. Only deployments that use restricted application credentials in combination with the EC2/S3 compatibility API (swift3 / s3api) are affected.", "A flaw was found in OpenStack Keystone. An authenticated user with a reader role can exploit a vulnerability in the EC2 credential creation endpoint. By using a restricted application credential to call the EC2 credential creation API, the user may obtain EC2/S3 credentials that carry the full set of the parent user's S3 permissions. This effectively bypasses the role restrictions imposed on the application credential, leading to unauthorized access and privilege escalation. This issue affects deployments that use restricted application credentials in combination with the EC2/S3 compatibility API." ],
  "acknowledgement" : "Red Hat would like to thank Maxence Bornecque (Orange Cyberdefense CERT Vulnerability Intelligence Watch Team) for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat OpenStack Platform 16.2",
    "release_date" : "2026-08-13T00:00:00Z",
    "advisory" : "RHSA-2026:54757",
    "cpe" : "cpe:/a:redhat:openstack:16.2::el8",
    "package" : "openstack-keystone-1:16.0.3-2.20260616134936.9d699a7.el8ost"
  }, {
    "product_name" : "Red Hat OpenStack Platform 17.1 for RHEL 9",
    "release_date" : "2026-06-22T00:00:00Z",
    "advisory" : "RHSA-2026:28044",
    "cpe" : "cpe:/a:redhat:openstack:17.1::el9",
    "package" : "openstack-keystone-1:19.0.2-17.1.20260529190847.54dd95d.el9ost"
  }, {
    "product_name" : "Red Hat OpenStack Services on OpenShift 18.0",
    "release_date" : "2026-07-15T00:00:00Z",
    "advisory" : "RHSA-2026:39808",
    "cpe" : "cpe:/a:redhat:openstack:18.0::el9",
    "package" : "openstack-keystone-1:23.0.3-18.0.20260610133808.9e3dfb4.el9ost"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat OpenStack Platform 13 (Queens)",
    "fix_state" : "Affected",
    "package_name" : "openstack-keystone",
    "cpe" : "cpe:/a:redhat:openstack:13"
  }, {
    "product_name" : "Red Hat OpenStack Platform 13 (Queens)",
    "fix_state" : "Affected",
    "package_name" : "rhosp13/openstack-keystone",
    "cpe" : "cpe:/a:redhat:openstack:13"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-33551\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-33551\nhttp://www.openwall.com/lists/oss-security/2026/04/07/12\nhttps://security.openstack.org/ossa/OSSA-2026-005.html\nhttps://www.openwall.com/lists/oss-security/2026/04/07/12" ],
  "name" : "CVE-2026-33551",
  "csaw" : false
}