Security advisory

{
  "id": "025798a6b2a9ec97a3b0abfa25ff1dc9541c9e2a964255651ca8125be14bdce2",
  "url": "https://osv.dev/vulnerability/CVE-2020-29565",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-29565",
    "summary": "An issue was discovered in OpenStack Horizon before 15.3.2, 16.x before 16.2.1, 17.x and 18.x before 18.3.3, 18.4.x, and 18.5.x. There is a lack of validation of the \"next\" parameter, which would allow someone to supply a malicious URL in Horizon that can cause an automatic redirect to the provided malicious URL.",
    "evidence": "osv:CVE-2020-29565",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-29565",
      "aliases": [
        "CVE-2020-29565",
        "GHSA-f8fh-xp28-q59m",
        "PYSEC-2020-45"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/openstack/horizon",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6b32ff44ea88772a2b9b668e6efa9181058c2f02"
                },
                {
                  "fixed": "9e0e333ab5277b6c396f602862ff90398cb0242b"
                },
                {
                  "introduced": "26c97d910a135d1ab1bd8ecd47f5bd80355b5624"
                },
                {
                  "fixed": "3689817f3317b999b2f0a5074ef56a55d8921488"
                },
                {
                  "introduced": "201b5380d5c10c55fb71ffea7d67a26b288817cf"
                },
                {
                  "fixed": "664c6ec28ec56ffd7474fba7ebce43dbdcf65543"
                },
                {
                  "introduced": "dd62fd386e0899ff84cdf9418c63f98caf66cf33"
                },
                {
                  "last_affected": "79e505520fc307eeedc1f5c81fb516e9638ebd72"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:openstack:horizon:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "15.3.0"
                      },
                      {
                        "fixed": "15.3.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:openstack:horizon:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "16.0.0"
                      },
                      {
                        "fixed": "16.2.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:openstack:horizon:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "17.0.0"
                      },
                      {
                        "fixed": "18.3.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:openstack:horizon:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "18.4.0"
                      },
                      {
                        "last_affected": "18.5.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "18.5.0",
            "15.3.1",
            "16.2.0",
            "18.4.1",
            "18.4.0",
            "18.3.2",
            "15.3.0",
            "18.3.1",
            "18.3.0",
            "18.2.0",
            "18.1.0",
            "16.1.0",
            "18.0.0",
            "17.1.0",
            "17.0.0",
            "16.0.0.0rc2",
            "16.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-29565.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:21.150418188Z",
      "provider": "osv",
      "references": [
        "https://www.debian.org/security/2020/dsa-4820",
        "https://bugs.launchpad.net/horizon/+bug/1865026",
        "https://review.opendev.org/c/openstack/horizon/+/758841/",
        "https://review.opendev.org/c/openstack/horizon/+/758843/",
        "https://security.openstack.org/ossa/OSSA-2020-008.html"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-29565",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 430431,
  "published_at": "2020-12-04T08:15:11.143+00:00"
}