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CVE-2026-42861

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, a mass assignment vulnerability exists in the variable update endpoint of FlowiseAI. The endpoint allows authenticated users to modify server-controlled properties such as workspaceId, createdDate, and updatedDate when updating a variable resource. Due to missing server-side validation and authorization checks, an attacker can manipulate the workspaceId field and reassign variables to
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:bcd742776911e1466c3bda21cd922af556366caa6e7bf204c106583110f52a02
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 3 assertions

{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5f4cc2ab0c1b4f0a257c60b15bfa3567dc927ac8fa57e3a7a3ea3c5d079aa2fa · sha256:9ba898ac480f24c5… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-284","description":"CWE-284: Improper Access Control","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5f4cc2ab0c1b4f0a257c60b15bfa3567dc927ac8fa57e3a7a3ea3c5d079aa2fa · sha256:9ba898ac480f24c5… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-915","description":"CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5f4cc2ab0c1b4f0a257c60b15bfa3567dc927ac8fa57e3a7a3ea3c5d079aa2fa · sha256:9ba898ac480f24c5… · /containers/cna/problemTypes/2/descriptions/0

Affected products and versions

1 source assertion
{"product":"Flowise","vendor":"FlowiseAI","versions":[{"status":"affected","version":"< 3.1.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5f4cc2ab0c1b4f0a257c60b15bfa3567dc927ac8fa57e3a7a3ea3c5d079aa2fa · sha256:9ba898ac480f24c5… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.6,"baseSeverity":"HIGH","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:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5f4cc2ab0c1b4f0a257c60b15bfa3567dc927ac8fa57e3a7a3ea3c5d079aa2fa · sha256:9ba898ac480f24c5… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

3 source assertions
{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5f4cc2ab0c1b4f0a257c60b15bfa3567dc927ac8fa57e3a7a3ea3c5d079aa2fa · sha256:9ba898ac480f24c5… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-284","description":"CWE-284: Improper Access Control","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5f4cc2ab0c1b4f0a257c60b15bfa3567dc927ac8fa57e3a7a3ea3c5d079aa2fa · sha256:9ba898ac480f24c5… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-915","description":"CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5f4cc2ab0c1b4f0a257c60b15bfa3567dc927ac8fa57e3a7a3ea3c5d079aa2fa · sha256:9ba898ac480f24c5… · /containers/cna/problemTypes/2/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.2","tags":["x_refsource_MISC"],"url":"https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5f4cc2ab0c1b4f0a257c60b15bfa3567dc927ac8fa57e3a7a3ea3c5d079aa2fa · sha256:9ba898ac480f24c5… · /containers/cna/references/1
{"name":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-6fw7-3q8r-m5vj","tags":["x_refsource_CONFIRM"],"url":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-6fw7-3q8r-m5vj"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5f4cc2ab0c1b4f0a257c60b15bfa3567dc927ac8fa57e3a7a3ea3c5d079aa2fa · sha256:9ba898ac480f24c5… · /containers/cna/references/0

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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