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🛡️ CVE-2026-70475 — flowise

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-862 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Flowise: Missing Authorization on Execution Update Endpoint

# Flowise Security Audit Report

Date: 2026-03-17

Researcher: Dimpal Jadhav ([email protected])

GitHub: https://github.com/Dimpyj1604

Target: FlowiseAI/Flowise (latest main branch)

Version: [email protected]

FINDING 1: Missing Authorization on Execution Update Endpoint

Severity: HIGH (CVSS ~7.5)

Type: CWE-862 (Missing Authorization)

File: packages/server/src/routes/executions/index.ts:11

Description: The PUT /api/v1/executions/:id endpoint lacks the checkAnyPermission() middleware that protects all other execution endpoints (GET, DELETE). Any authenticated user — regardless of their assigned permissions — can modify any execution record.

Evidence:

```typescript

// Line 7 - GET has permission check

router.get('/', checkAnyPermission('executions:view'), executionController.getAllExecutions)

// Line 11 - PUT has NO permission check

router.put(['/', '/:id'], executionController.updateExecution) // <-- MISSING checkAnyPermission

// Line 14 - DELETE has permission checkadvisory_1_execution_auth_bypass

router.delete('/:id', checkAnyPermission('executions:delete'), executionController.deleteExecutions)

```

Impact: Privilege escalation. A low-privileged user with any valid API key can modify execution state, data, and metadata of any execution in their workspace. Could be used to manipulate workflow execution results or inject data.

Reproduction:

```bash

curl -X PUT https://TARGET/api/v1/executions/EXECUTION_ID \

-H "Authorization: Bearer LOW_PRIV_API_KEY" \

-H "Content-Type: application/json" \

-d '{"state": "FINISHED", "data": "MANIPULATED"}'

```

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. Rated impact: confidentiality none, integrity high, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Attack requirements: None — no deployment-specific condition has to hold.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • Confidentiality impact: None.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: None.

Weakness class

CVE-2026-70475 is classified as CWE-862: Missing Authorization. No authorisation check is performed before carrying out a restricted action.

Affected software

CVE-2026-70475 is recorded against 2 packages.

  • flowise
  • unknown

Timeline and source

Published on 4 August 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com (Web)
github.com (Web)
github.com (Web)
github.com (Package)
github.com (Web)

Other advisories for this package

flowise has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-862: Missing Authorization) in other software:

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
CWE CWE-862
Public Exploit ✅ No
Source NVD
Published 2026-08-04
Updated 2026-08-20
Modified 2026-08-04
Fix URL N/A

Affected Packages

Software From version Fixed in
flowise — —
unknown — —

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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