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CVE-2026-69252 high CVSS 8.8

Vulnerability in flowise (CVE-2026-69252)

Summary

Vulnerability in flowise (CVE-2026-69252). Successful exploitation can lead to full system takeover. Exploitable via GET /api/v1/files. Mitigation: upgrade to 3.1.3 or later.

Original description

The description as published by the source.

summary:

In Flowise, the /api/v1/files route is protected only by the feat:files feature gate and does not enforce checkPermission(...) on either GET or DELETE. As a result, any authenticated API key within the organization, even one with unrelated permissions, can list and delete files belonging to other workspaces in the same organization.

details:

The /files route is mounted with IdentityManager.checkFeatureByPlan('feat:files') only and has no additional permission middleware. In the controller:

  • getAllFiles uses only req.user.activeOrganizationId and calls getFilesListFromStorage(activeOrganizationId), which recursively lists files under the organization storage root
  • deleteFile reads activeWorkspaceId, but only uses it for storage quota bookkeeping; the actual deletion is performed using activeOrganizationId + user-controlled path

As a result, the API key’s permissions and activeWorkspaceId are not used to restrict file access.
In the local test environment,an API key bound to workspace 1592b32a-a11b-4996-80b6-e1c4c2969d88 with only ["tools:view"] was created, then successfully:

  • called GET /api/v1/files and received 200 OK
  • listed a test file stored under a different workspace, f92a9a4d-392e-4db2-af82-d14e1d553446
  • called DELETE /api/v1/files?path=f92a9a4d-392e-4db2-af82-d14e1d553446/poc-cross-workspace.txt and received 200 OK
  • confirmed the file was removed by re-querying the file list

impact:

Any low-privi…

Source: GitHub Security Advisories (Global) NVD GitHub Advisory

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2026-69252 has been found in flowise.
Attackers can target a specific entry point like GET /api/v1/files over the network to misuse the product.
Successful exploitation can lead to full system takeover. CVSS score: 8.8/10.
What to do: upgrade flowise to 3.1.3 or later.
If unsure, ask your IT team or search "flowise CVE-2026-69252" on the vendor's site.

CVE-2026-69252 (flowise) — CWE-862 / CVSS v3 8.8
Attack vector: remote (network-reachable) / no user interaction
Attack surface: GET /api/v1/files / DELETE /api/v1/files / GET / DELETE
Patched: 3.1.3 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

A vulnerability (CWE-862) exists in flowise. Attackers reach the vulnerable code path via GET /api/v1/files.

📍 Affected scope

Check the vendor advisory for the affected versions of flowise. Attack surface: GET /api/v1/files / DELETE /api/v1/files / GET / DELETE.

🔥 Severity

Severity: High (CVSS 8.8/10). Successful exploitation can lead to full system takeover.

🔧 How to fix

Update to 3.1.3.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual GET /api/v1/files requests with malformed payloads or SQL meta-characters. Run grep -r 'flowise' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify 
    grep -r 'flowise' . | grep -v node_modules

    リポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で flowise を grep し、稼働しているサービス・バージョンを把握する。

  2. 2
    Hunt for indicators of compromise detect 
    grep 'GET /api/v1/files' /var/log/nginx/access.log | grep -E '(unusual_payload|sqli_pattern)'

    アクセスログで GET /api/v1/files への異常なリクエスト (不正な認証ヘッダ・SQLメタ文字)を過去 30〜90日分捜索。WAF/SIEM があれば該当パスのアラート発火履歴を確認。

  3. 3
    Apply patch patch 
    Upgrade flowise to 3.1.3

    ステージング環境で 3.1.3 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 2 で見つけた異常検知の続報チェックを含めること。

  4. 4
    Post-deployment verification verify 
    Replay attack against GET /api/v1/files on staging to confirm patch closes the vector

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 2 と同じログクエリでアラート再発が無いか継続監視。

Affected packages

npm flowise
[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.1.3"}]}]

References

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