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Pixelfed OAuth Scope ApiV1Controller.php instancePeers missing authentication

Type: advisorySources: OSV

A vulnerability was identified in Pixelfed up to 0.12.11. Impacted is the function instancePeers of the file app/Http/Controllers/Api/ApiV1Controller.php of the component OAuth Scope Handler. Such manipulation of the argument ID leads to missing authentication. The attack may be performed from remote. The exploit is publicly available and might be used. Upgrading to version 0.12.10 is recommended to address this issue. The name of the patch is 68dca5097305fa0065d029587b2233524636025a. Upgrading the affected component is advised.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-93960
Confirmed fixed CVEs
Not specified
Updated in this feed
5 Nov 2026, 01:24 UTC · Revision 1

Source evidence

Pixelfed OAuth Scope ApiV1Controller.php instancePeers missing authentication

core-osv · Original source

Published 20 Sept 2026, 03:00 UTC

A vulnerability was identified in Pixelfed up to 0.12.11. Impacted is the function instancePeers of the file app/Http/Controllers/Api/ApiV1Controller.php of the component OAuth Scope Handler. Such manipulation of the argument ID leads to missing authentication. The attack may be performed from remote. The exploit is publicly available and might be used. Upgrading to version 0.12.10 is recommended to address this issue. The name of the patch is 68dca5097305fa0065d029587b2233524636025a. Upgrading the affected component is advised.

osv:CVE-2026-93960
Complete source record
{
  "id": "613021c4ef5591060186dfd72c8336a653029a3d243081ec06f412c363df848c",
  "url": "https://osv.dev/vulnerability/CVE-2026-93960",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Pixelfed OAuth Scope ApiV1Controller.php instancePeers missing authentication",
    "summary": "A vulnerability was identified in Pixelfed up to 0.12.11. Impacted is the function instancePeers of the file app/Http/Controllers/Api/ApiV1Controller.php of the component OAuth Scope Handler. Such manipulation of the argument ID leads to missing authentication. The attack may be performed from remote. The exploit is publicly available and might be used. Upgrading to version 0.12.10 is recommended to address this issue. The name of the patch is 68dca5097305fa0065d029587b2233524636025a. Upgrading the affected component is advised.",
    "evidence": "osv:CVE-2026-93960",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2026-93960",
      "aliases": [
        "CVE-2026-93960"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/pixelfed/pixelfed",
              "type": "GIT",
              "events": [
                {
                  "introduced": "cf10fca74ffaeb515bd3f5b8be8ce68a6f64b4a2"
                },
                {
                  "fixed": "68dca5097305fa0065d029587b2233524636025a"
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                {
                  "fixed": "ecc256f4830a5cfc01ebfb81c6bf472725872b5a"
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              "database_specific": {
                "extracted_events": [
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                    "range": [
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                        "introduced": "0.12.0"
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                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0.12.1"
                      },
                      {
                        "last_affected": "0.12.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
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                        "introduced": "0.12.2"
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                        "last_affected": "0.12.2"
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                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0.12.3"
                      },
                      {
                        "last_affected": "0.12.3"
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                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0.12.4"
                      },
                      {
                        "last_affected": "0.12.4"
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                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0.12.5"
                      },
                      {
                        "last_affected": "0.12.5"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0.12.6"
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                      {
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                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0.12.7"
                      },
                      {
                        "last_affected": "0.12.7"
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                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0.12.8"
                      },
                      {
                        "last_affected": "0.12.8"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0.12.9"
                      },
                      {
                        "last_affected": "0.12.9"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0.12.10"
                      },
                      {
                        "last_affected": "0.12.10"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0.12.11"
                      },
                      {
                        "last_affected": "0.12.11"
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                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "fixed": "68dca5097305fa0065d029587b2233524636025a"
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                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "ecc256f4830a5cfc01ebfb81c6bf472725872b5a"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v0.12.10"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.12.0",
            "0.12.1",
            "0.12.10",
            "0.12.11",
            "0.12.2",
            "0.12.3",
            "0.12.4",
            "0.12.5",
            "0.12.6",
            "0.12.7",
            "0.12.8",
            "0.12.9",
            "v0.12.9",
            "v0.12.8",
            "v0.12.7",
            "v0.12.6",
            "v0.12.5",
            "v0.12.4",
            "v0.12.3",
            "v0.12.2",
            "v0.12.1",
            "v0.12.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93960.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:41.535702813Z",
      "provider": "osv",
      "references": [
        "https://github.com/pixelfed/pixelfed/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93960.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93960",
        "https://vuldb.com/cve/CVE-2026-93960",
        "https://vuldb.com/submit/944207",
        "https://vuldb.com/vuln/407919",
        "https://github.com/pixelfed/pixelfed/issues/6643",
        "https://vuldb.com/vuln/407919/cti",
        "https://github.com/pixelfed/pixelfed/commit/68dca5097305fa0065d029587b2233524636025a",
        "https://github.com/pixelfed/pixelfed/pull/6774",
        "https://github.com/pixelfed/pixelfed/releases/tag/v0.12.10"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-287",
          "CWE-306"
        ],
        "cna_assigner": "VulDB",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93960.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-93960",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 509061,
  "published_at": "2026-09-20T03:00:19.652+00:00"
}