{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-56276","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-06-20T01:47:54.001Z","datePublished":"2026-06-20T15:24:44.035Z","dateUpdated":"2026-06-20T15:24:44.035Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-06-20T15:24:44.035Z"},"datePublic":"2026-05-14T00:00:00.000Z","title":"Flowise - Mass Assignment in PUT /api/v1/user Allows Password Hash Override","descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Improperly Controlled Modification of Dynamically-Determined Object Attributes","cweId":"CWE-915","type":"CWE"}]}],"affected":[{"vendor":"Flowise","product":"Flowise","defaultStatus":"unaffected","packageURL":"pkg:npm/flowise","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"3.1.2"},{"version":"3.1.2","status":"unaffected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*","versionEndExcluding":"3.1.2"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"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","attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-59fh-9f3p-7m39","name":"GHSA Advisory GHSA-59fh-9f3p-7m39","tags":["vendor-advisory"]},{"name":"VulnCheck Advisory: Flowise - Mass Assignment in PUT /api/v1/user Allows Password Hash Override","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/flowise-mass-assignment-in-put-api-v1-user-allows-password-hash-override"}],"credits":[{"lang":"en","value":"berkdedekarginoglu","type":"reporter"}],"x_generator":{"engine":"vulncheck"}}}}