CVE-2025-59434

criticalpriority · track · 1EPSS 0.036 · 90 %ileDEEURU

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

3.65% (90th) EPSS

CVSS 9.6 · critical

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to August 2025 Cloud-Hosted Flowise, an authenticated vulnerability in Flowise Cloud allows any user on the free tier to access sensitive environment variables from other tenants via the Custom JavaScript Function node. This includes secrets such as OpenAI API keys, AWS credentials, Supabase tokens, and Google Cloud secrets — resulting in a full cross-tenant data exposure. This issue has been patched in the August 2025 Cloud-Hosted Flowise.

cvss

Technical severity, 0–10. One row per scoring source.

9.6

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.8–9.6

v3.19.6criticalAV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.19.6criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Nsecondary · ENISA EU

v3.19.6criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Nsecondary · security-advisories@github.comexploitability 3.1 · impact 5.8

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: no · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200USCWE-200USCWE-284USCWE-284US

affected products (4)

Products and version ranges known to be affected.

Open Source Flowise Cloud <August 2025all versionscert_bundDE
Open Source Flowise≤ Cloud <August 2025cert_bundDE
FlowiseAI Flowise≤ < cloud-hosted (as of Aug 2025)enisa_euvdEU
Flowise AI Flowise≤ 3.0.5fstec_bduRU

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-2105Flowise: Mehrere SchwachstellenDeutsch2025-09-22csaf · cert_bundDE
Ein entfernter, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in Flowise ausnutzen, um Informationen offenzulegen und beliebigen Code auszuführen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2025-09-22modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

scry

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