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keystone — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-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.

Products
keystone
Affected versions
Not specified
Fixed versions
2:17.0.0~rc2-1
CVEs
CVE-2020-12690
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 12:34 UTC · Revision 1

Source evidence

DEBIAN-CVE-2020-12690

core-osv · Original source

Published 7 May 2020, 00:15 UTC

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.

osv:DEBIAN-CVE-2020-12690

keystone

Fixed versions: 2:17.0.0~rc2-1

keystone

Fixed versions: 2:17.0.0~rc2-1

keystone

Fixed versions: 2:17.0.0~rc2-1

Complete source record
{
  "id": "398936de96ef58e0a3187e1559bceda9036606c3c6b892c6f3d9ef307fdb3115",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-12690",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2020-12690",
    "summary": "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.",
    "evidence": "osv:DEBIAN-CVE-2020-12690",
    "products": [
      {
        "name": {
          "value": "keystone",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2:17.0.0~rc2-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "keystone",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2:17.0.0~rc2-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "keystone",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2:17.0.0~rc2-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2020-12690",
      "aliases": [
        "DEBIAN-CVE-2020-12690"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2:17.0.0~rc2-1"
                }
              ]
            }
          ],
          "package": {
            "name": "keystone",
            "purl": "pkg:deb/debian/keystone?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-12690.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2:17.0.0~rc2-1"
                }
              ]
            }
          ],
          "package": {
            "name": "keystone",
            "purl": "pkg:deb/debian/keystone?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-12690.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2:17.0.0~rc2-1"
                }
              ]
            }
          ],
          "package": {
            "name": "keystone",
            "purl": "pkg:deb/debian/keystone?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-12690.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-26T12:00:30.326113771Z",
      "provider": "osv",
      "upstream": [
        "CVE-2020-12690"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2020-12690"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2020-12690",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 451187,
  "published_at": "2020-05-07T00:15:10.923+00:00"
}