Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, CustomTemplate create and update mass-assignment allows cross-workspace template takeover. This issue has been patched in version 3.1.2.
CVE-2026-46476
HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence
This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 75% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, nvd
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 8.8(medium)
- EPSS
- 25.5%
- KEV
- Not listed
Published
June 8, 2026
Last Modified
June 15, 2026
Advisory Details (2)
Auto-updated Jun 8, 2026🔬 Proof of concept available. Patch available. Sources: github, github_release.
github_release Patch Available
[email protected]
Patch available: FlowiseAI/Flowise [email protected]
https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.2github Patch Available🟡 PoC Available
CustomTemplate create+update mass-assignment allows cross-workspace template takeover · Advisory · FlowiseAI/Flowise · GitHub
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-728h-4mwj-f2p4Vendor Advisories for CVE-2026-46476(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Frequently asked(5)
What is CVE-2026-46476?
CVE-2026-46476 is a high vulnerability published on June 8, 2026. Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, CustomTemplate create and update mass-assignment allows cross-workspace template takeover. This issue has been patched in version 3.1.2.
When was CVE-2026-46476 disclosed?
CVE-2026-46476 was first published in the National Vulnerability Database on June 8, 2026, with the most recent update on June 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46476 actively exploited?
CVE-2026-46476 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 25.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-46476?
CVE-2026-46476 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-46476?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46476, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-46476
Is Your Infrastructure Affected by CVE-2026-46476?
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