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Security advisory

Type: advisorySources: OSVCVE: CVE-2021-3563

A flaw was found in openstack-keystone. Only the first 72 characters of an application secret are verified allowing attackers bypass some password complexity which administrators may be counting on. The highest threat from this vulnerability is to data confidentiality and integrity.

Products
Not specified
Affected versions
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Fixed versions
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CVEs
CVE-2021-3563
Confirmed fixed CVEs
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Updated in this feed
1 Nov 2026, 06:45 UTC · Revision 1

Source evidence

CVE-2021-3563

core-osv · Original source

Published 26 Aug 2022, 16:15 UTC

A flaw was found in openstack-keystone. Only the first 72 characters of an application secret are verified allowing attackers bypass some password complexity which administrators may be counting on. The highest threat from this vulnerability is to data confidentiality and integrity.

osv:CVE-2021-3563
Complete source record
{
  "id": "2baec67b1b68bc505266b8419db296c67b2f5a94346479a57220de589b194468",
  "url": "https://osv.dev/vulnerability/CVE-2021-3563",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-3563",
    "summary": "A flaw was found in openstack-keystone. Only the first 72 characters of an application secret are verified allowing attackers bypass some password complexity which administrators may be counting on. The highest threat from this vulnerability is to data confidentiality and integrity.",
    "evidence": "osv:CVE-2021-3563",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-3563",
      "aliases": [
        "CVE-2021-3563",
        "GHSA-cc99-whm5-mmq3",
        "PYSEC-2026-370"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/openstack/keystone",
              "type": "GIT",
              "events": [
                {
                  "introduced": "339e7cc798aed24b7697980eb7cf8e20498d436d"
                },
                {
                  "last_affected": "847676854572e0c36535048b731f966590adb746"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "10.0"
                      },
                      {
                        "last_affected": "10.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:redhat:openstack_platform:10.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "10.0"
                      },
                      {
                        "last_affected": "10.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "11.0"
                      },
                      {
                        "last_affected": "11.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:redhat:openstack_platform:13.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "13.0"
                      },
                      {
                        "last_affected": "13.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "10.0",
            "11.0",
            "13.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3563.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:44.001751126Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2024/01/msg00007.html",
        "https://access.redhat.com/security/cve/CVE-2021-3563",
        "https://bugs.launchpad.net/ossa/+bug/1901891",
        "https://bugzilla.redhat.com/show_bug.cgi?id=1962908",
        "https://security-tracker.debian.org/tracker/CVE-2021-3563"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:redhat:openstack_platform:16.1:*:*:*:*:*:*:*",
              "cpe:2.3:a:redhat:openstack_platform:16.2:*:*:*:*:*:*:*"
            ],
            "vendor_product": "redhat:openstack_platform",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "16.1"
                  },
                  {
                    "last_affected": "16.1"
                  },
                  {
                    "introduced": "16.2"
                  },
                  {
                    "last_affected": "16.2"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-3563",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 435769,
  "published_at": "2022-08-26T16:15:08.867+00:00"
}