{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.1.2"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4114b3b506e7bbee155141175a2ba48e426919dd"
            }
          ],
          "repo": "https://github.com/flowiseai/flowise",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-59fh-9f3p-7m39"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-915"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56276.json"
  },
  "details": "Flowise before 3.1.2 contains a mass assignment vulnerability in the PUT /api/v1/user endpoint that allows authenticated users to directly modify the credential field without validation. Attackers can bypass password change verification and session invalidation by supplying a crafted password hash, establishing persistent account access after temporary session compromise.",
  "id": "CVE-2026-56276",
  "modified": "2026-07-08T05:37:22.990116255Z",
  "published": "2026-06-20T15:24:44.035Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56276.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-59fh-9f3p-7m39"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56276"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/flowise-mass-assignment-in-put-api-v1-user-allows-password-hash-override"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Flowise - Mass Assignment in PUT /api/v1/user Allows Password Hash Override"
}