{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0"
                  },
                  {
                    "last_affected": "0.5.3"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "27bdc89569ab0a4a9a2042fc9d8f27bda5419ccc"
            }
          ],
          "repo": "https://github.com/53ai/53aihub",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-306"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111653.json"
  },
  "details": "53AIHub through 0.5.3 contains a missing authentication vulnerability that allows unauthenticated attackers to overwrite any enterprise's profile by sending PUT requests to /api/enterprises/:id. Because UpdateEnterprise only enforces checks when IS_SAAS is true, attackers can enumerate sequential enterprise IDs and overwrite logos, display names and branding for defacement and phishing.",
  "id": "CVE-2026-111653",
  "modified": "2026-10-21T02:31:04.078085493Z",
  "published": "2026-10-16T17:39:20.030Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://github.com/53AI/53AIHub"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/53AI/53AIHub/blob/v0.5.3/api/controller/enterprise.go#L122-L160"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/53AI/53AIHub/blob/v0.5.3/api/router/api.go#L54-L66"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111653.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://hackmd.io/@hieuPenguinnn/53aihub-unauth-cross-tenant-enterprise-update"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111653"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/53aihub-through-0.5.3-missing-authentication-via-put-api-enterprises-id"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "53AIHub through 0.5.3 Missing Authentication via PUT /api/enterprises/:id"
}