Vulnerability-Lookup

CVE-2026-54136 (GCVE-0-2026-54136)

Vulnerability from cvelistv5 – Published: 2026-08-20 16:47 – Updated: 2026-08-21 21:47

Title

Windmill: Resource-scoped API tokens can read script contents outside their allowed path via scripts/list_search

Summary

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.

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-21 20:58 UTC

CWE

CWE-863 - Incorrect Authorization

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7760 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/windmill-labs/windmill/securit…	x_refsource_CONFIRM
https://github.com/windmill-labs/windmill/pull/9426	x_refsource_MISC
https://github.com/windmill-labs/windmill/commit/…	x_refsource_MISC
https://github.com/windmill-labs/windmill/release…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
windmill-labs	windmill	Affected: < 1.715.0	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-54136

Vulnerability from fkie_nvd - Published: 2026-08-20 17:18 - Updated: 2026-10-18 20:10

Severity

5.1 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/windmill-labs/windmill/commit/7edf3f02122e20fde1e95e0252e7bda641075326
	security-advisories@github.com	https://github.com/windmill-labs/windmill/pull/9426
	security-advisories@github.com	https://github.com/windmill-labs/windmill/releases/tag/v1.715.0
	security-advisories@github.com	https://github.com/windmill-labs/windmill/security/advisories/GHSA-2ppx-66jv-wpw5

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
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      "affectedData": [
        {
          "product": "windmill",
          "vendor": "windmill-labs",
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            {
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    },
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    }
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          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "HIGH",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-54136",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-21T20:58:49.078615Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-20T17:18:17.737",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/windmill-labs/windmill/commit/7edf3f02122e20fde1e95e0252e7bda641075326"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/windmill-labs/windmill/pull/9426"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/windmill-labs/windmill/releases/tag/v1.715.0"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/windmill-labs/windmill/security/advisories/GHSA-2ppx-66jv-wpw5"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-2PPX-66JV-WPW5

Vulnerability from github – Published: 2026-07-10 19:28 – Updated: 2026-07-10 19:28

Summary

Windmill: Resource-scoped API tokens can read script contents outside their allowed path via scripts/list_search

Details

Summary

A resource-scoped API token can read script contents outside its allowed path scope via GET /api/w/{workspace}/scripts/list_search.

This appears to be a remaining variant of the scoped-token authorization class previously addressed for other endpoints. The route-level scope middleware validates the token domain/action, but does not enforce the resource/path segment of a scope. scripts/list_search then returns script path and content for scripts in the workspace without applying per-row path filtering against the token scopes.

Affected endpoint

GET /api/w/{workspace}/scripts/list_search

Affected versions

Confirmed in the current public repository code and believed to affect the latest published release at the time of review:

<= 1.714.1

Patched version: unknown.

Details

Windmill supports scoped API tokens with scopes in the format:

{domain}:{action}[:{resource}]

The parser supports resource-scoped values such as:

scripts:read:f/allowed/*

and the codebase contains helpers for resource matching, including wildcard matching.

However, the route-level scope check used for requests with scoped API tokens only validates the route domain and action. It does not compare the token's resource/path restriction against the requested route or against the rows returned by list endpoints.

For scripts/list_search, the handler returns path and content for scripts in the workspace:

SELECT path, content from script WHERE workspace_id = $1 AND archived = false LIMIT $2

There is no additional check_scopes(...) call in the handler and no per-row filtering based on the token's resource/path scope.

As a result, a token intended to read only scripts under one path prefix may be able to read script contents from unrelated paths in the same workspace.

Source-level reproduction

Create or use a workspace containing at least two scripts:
f/allowed/script_a
f/private/script_b
Create a scoped API token intended to read only the allowed path:

scripts:read:f/allowed/*

Use that token to call:

GET /api/w/{workspace}/scripts/list_search

Expected behavior:

The response should include only scripts matching the token's resource scope, e.g. only scripts under:

f/allowed/*

Actual behavior from source review:

The route-level scope check accepts the request as scripts:read, and the handler returns script path and content for scripts in the workspace without filtering the rows by the token's resource scope.

This can expose script source code from paths outside the token's intended scope.

Impact

A user or integration holding a path-restricted scripts:read:{resource} token may be able to read script contents from unrelated scripts in the same workspace.

Depending on how scripts are used, this may disclose:

internal automation logic,
integration details,
business logic,
inline configuration,
accidentally hardcoded secrets or credentials.

This does not require admin privileges. It requires possession of a valid scoped API token for the workspace.

Related context

This appears related to the broader class of issues where route-level token scope enforcement validates domain/action but not the resource/path portion of the scope. Similar scoped-token issues appear to have been fixed for other endpoints, such as resources/variables listing and job preview/run paths, but I did not find an equivalent fix for scripts/list_search.

Suggested fix

Apply resource/path scope enforcement to scripts/list_search.

Possible approaches:

Add explicit handler-level authorization similar to per-resource endpoints.
Filter returned rows so that a scoped token only receives scripts whose path is included by at least one scripts:read:{resource} scope.
Add regression tests for:
scripts:read:f/allowed/* cannot see f/private/script_b,
broad scripts:read still sees all accessible scripts,
unscoped tokens preserve current behavior,
filter-tag-only tokens preserve current compatibility behavior.

A more defensive long-term fix would be to make route-level scope enforcement aware of resource/path restrictions where the route contains a concrete resource path, while list endpoints should apply per-row filtering.

Severity

5.1 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.714.1"
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "windmill-api"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.715.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-54136"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-10T19:28:06Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Summary\n\nA resource-scoped API token can read script contents outside its allowed path scope via `GET /api/w/{workspace}/scripts/list_search`.\n\nThis appears to be a remaining variant of the scoped-token authorization class previously addressed for other endpoints. The route-level scope middleware validates the token domain/action, but does not enforce the resource/path segment of a scope. `scripts/list_search` then returns script `path` and `content` for scripts in the workspace without applying per-row path filtering against the token scopes.\n\n### Affected endpoint\n\n`GET /api/w/{workspace}/scripts/list_search`\n\n### Affected versions\n\nConfirmed in the current public repository code and believed to affect the latest published release at the time of review:\n\n`\u003c= 1.714.1`\n\nPatched version: unknown.\n\n### Details\n\nWindmill supports scoped API tokens with scopes in the format:\n\n`{domain}:{action}[:{resource}]`\n\nThe parser supports resource-scoped values such as:\n\n`scripts:read:f/allowed/*`\n\nand the codebase contains helpers for resource matching, including wildcard matching.\n\nHowever, the route-level scope check used for requests with scoped API tokens only validates the route domain and action. It does not compare the token\u0027s resource/path restriction against the requested route or against the rows returned by list endpoints.\n\nFor `scripts/list_search`, the handler returns `path` and `content` for scripts in the workspace:\n\n`SELECT path, content from script WHERE workspace_id = $1 AND archived = false LIMIT $2`\n\nThere is no additional `check_scopes(...)` call in the handler and no per-row filtering based on the token\u0027s resource/path scope.\n\nAs a result, a token intended to read only scripts under one path prefix may be able to read script contents from unrelated paths in the same workspace.\n\n### Source-level reproduction\n\n1. Create or use a workspace containing at least two scripts:\n\n- `f/allowed/script_a`\n- `f/private/script_b`\n\n2. Create a scoped API token intended to read only the allowed path:\n\n`scripts:read:f/allowed/*`\n\n3. Use that token to call:\n\n`GET /api/w/{workspace}/scripts/list_search`\n\n4. Expected behavior:\n\nThe response should include only scripts matching the token\u0027s resource scope, e.g. only scripts under:\n\n`f/allowed/*`\n\n5. Actual behavior from source review:\n\nThe route-level scope check accepts the request as `scripts:read`, and the handler returns script `path` and `content` for scripts in the workspace without filtering the rows by the token\u0027s resource scope.\n\nThis can expose script source code from paths outside the token\u0027s intended scope.\n\n### Impact\n\nA user or integration holding a path-restricted `scripts:read:{resource}` token may be able to read script contents from unrelated scripts in the same workspace.\n\nDepending on how scripts are used, this may disclose:\n\n- internal automation logic,\n- integration details,\n- business logic,\n- inline configuration,\n- accidentally hardcoded secrets or credentials.\n\nThis does not require admin privileges. It requires possession of a valid scoped API token for the workspace.\n\n### Related context\n\nThis appears related to the broader class of issues where route-level token scope enforcement validates domain/action but not the resource/path portion of the scope. Similar scoped-token issues appear to have been fixed for other endpoints, such as resources/variables listing and job preview/run paths, but I did not find an equivalent fix for `scripts/list_search`.\n\n### Suggested fix\n\nApply resource/path scope enforcement to `scripts/list_search`.\n\nPossible approaches:\n\n1. Add explicit handler-level authorization similar to per-resource endpoints.\n2. Filter returned rows so that a scoped token only receives scripts whose `path` is included by at least one `scripts:read:{resource}` scope.\n3. Add regression tests for:\n   - `scripts:read:f/allowed/*` cannot see `f/private/script_b`,\n   - broad `scripts:read` still sees all accessible scripts,\n   - unscoped tokens preserve current behavior,\n   - filter-tag-only tokens preserve current compatibility behavior.\n\nA more defensive long-term fix would be to make route-level scope enforcement aware of resource/path restrictions where the route contains a concrete resource path, while list endpoints should apply per-row filtering.",
  "id": "GHSA-2ppx-66jv-wpw5",
  "modified": "2026-07-10T19:28:06Z",
  "published": "2026-07-10T19:28:06Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/windmill-labs/windmill/security/advisories/GHSA-2ppx-66jv-wpw5"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/windmill-labs/windmill"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Windmill: Resource-scoped API tokens can read script contents outside their allowed path via scripts/list_search"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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CVE-2026-54136 (GCVE-0-2026-54136)

FKIE_CVE-2026-54136

GHSA-2PPX-66JV-WPW5

Summary

Affected endpoint

Affected versions

Details

Source-level reproduction

Impact

Related context

Suggested fix

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour