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CVE-2026-56276

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7807e2142e31618bab329ff3d7f2956ece99524176e78c316847db510c0f28ee
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","packageURL":"pkg:npm/flowise","product":"Flowise","vendor":"Flowise","versions":[{"lessThan":"3.1.2","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"3.1.2","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:26a60c11bfdb4ffb9dfeeeb5a25c2e937e7d4a8e32b2a9f365d71b074ac36a0a · sha256:ef605a10836474b8… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","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","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:26a60c11bfdb4ffb9dfeeeb5a25c2e937e7d4a8e32b2a9f365d71b074ac36a0a · sha256:ef605a10836474b8… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-915","description":"Improperly Controlled Modification of Dynamically-Determined Object Attributes","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:26a60c11bfdb4ffb9dfeeeb5a25c2e937e7d4a8e32b2a9f365d71b074ac36a0a · sha256:ef605a10836474b8… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"GHSA Advisory GHSA-59fh-9f3p-7m39","tags":["vendor-advisory"],"url":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-59fh-9f3p-7m39"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:26a60c11bfdb4ffb9dfeeeb5a25c2e937e7d4a8e32b2a9f365d71b074ac36a0a · sha256:ef605a10836474b8… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-59fh-9f3p-7m39"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:26a60c11bfdb4ffb9dfeeeb5a25c2e937e7d4a8e32b2a9f365d71b074ac36a0a · sha256:ef605a10836474b8… · /containers/adp/0/references/0
{"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"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:26a60c11bfdb4ffb9dfeeeb5a25c2e937e7d4a8e32b2a9f365d71b074ac36a0a · sha256:ef605a10836474b8… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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