Authorization Flaw in windmill-api (CVE-2026-54136)
Summary
Vulnerability in windmill-api (CVE-2026-54136). Risk of unauthorized operations or information disclosure. Exploitable via GET /api/w/{workspace}/scripts/list_search. Mitigation: upgrade to 1.715.0 or later.
Original description
The description as published by the source.
Windmill is an open-source developer platform for internal code: APIs, background jobs, workflows and UIs. Prior to 1.715.0, a resource-scoped API token could read script contents outside its allowed path scope through GET /api/w/{workspace}/scripts/list_search. The route-level scope middleware validated the token domain and action but did not enforce the resource/path segment, and the list_search_scripts handler had no additional check_scopes call or per-row filtering before returning script path and content fields. A token such as scripts:read:f/allowed/* could therefore receive source code for unrelated paths in the same workspace, potentially disclosing internal automation logic, integration details, business logic, inline configuration, or hardcoded secrets and credentials. Exploitation required possession of a valid scoped API token for the workspace but did not require administrator privileges. This issue is fixed in version 1.715.0.
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-2026-54136 has been found in windmill-api.
Attackers can target a specific entry point like GET /api/w/{workspace}/scripts/list_search over the network to misuse the product.
Risk of unauthorized operations or information disclosure.
What to do: upgrade windmill-api to 1.715.0 or later.
If unsure, ask your IT team or search "windmill-api CVE-2026-54136" on the vendor's site.
CVE-2026-54136 (windmill-api) — CWE-863
Attack surface: GET /api/w/{workspace}/scripts/list_search / path / content
Patched: 1.715.0 — 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.
Incorrect authorization (CWE-863) exists in windmill-api. Attackers reach the vulnerable code path via GET /api/w/{workspace}/scripts/list_search.
Check the vendor advisory for the affected versions of windmill-api. Attack surface: GET /api/w/{workspace}/scripts/list_search / path / content.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 1.715.0.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual GET /api/w/{workspace}/scripts/list_search requests with malformed payloads or SQL meta-characters. Run grep -r 'windmill-api' . 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
-
1Identify exposure identify
grep -r 'windmill-api' . | 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
windmill-apiを grep し、稼働しているサービス・バージョンを把握する。 -
2Hunt for indicators of compromise detect
grep 'GET /api/w/{workspace}/scripts/list_search' /var/log/nginx/access.log | grep -E '(unusual_payload|sqli_pattern)'アクセスログで
GET /api/w/{workspace}/scripts/list_search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。 -
3Apply patch patch
Upgrade windmill-api to 1.715.0ステージング環境で 1.715.0 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。
-
4Post-deployment verification verify
Replay attack against GET /api/w/{workspace}/scripts/list_search 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
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- package github.com
- patch github.com
- patch github.com
- web github.com
- web github.com