cvelistv5 - cve-2025-31477

CVE-2025-31477 (GCVE-0-2025-31477)

Vulnerability from cvelistv5 – Published: 2025-04-02 21:10 – Updated: 2025-04-03 13:59

Summary

The Tauri shell plugin allows access to the system shell. Prior to 2.2.1, the Tauri shell plugin exposes functionality to execute code and open programs on the system. The open endpoint of this plugin is designed to allow open functionality with the system opener (e.g. xdg-open on Linux). This was meant to be restricted to a reasonable number of protocols like https or mailto by default. This default restriction was not functional due to improper validation of the allowed protocols, allowing for potentially dangerous protocols like file://, smb://, or nfs:// and others to be opened by the system registered protocol handler. By passing untrusted user input to the open endpoint these potentially dangerous protocols can be abused to gain remote code execution on the system. This either requires direct exposure of the endpoint to application users or code execution in the frontend of a Tauri application. This vulnerability is fixed in 2.2.1.

Severity ?

9.3 (Critical)


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

CWE

CWE-20 - Improper Input Validation

Assigner

GitHub_M

References

URL

Tags

	https://github.com/tauri-apps/plugins-workspace/s…	x_refsource_CONFIRM
	https://github.com/tauri-apps/plugins-workspace/c…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	tauri-apps	plugins-workspace	Affected: < 2.2.1

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2025-31477

Vulnerability from fkie_nvd - Published: 2025-04-02 22:15 - Updated: 2025-04-29 13:30

Severity ?

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/tauri-apps/plugins-workspace/commit/9cf0390a52497e273db1a1b613a0e26827aa327c	Patch
security-advisories@github.com	https://github.com/tauri-apps/plugins-workspace/security/advisories/GHSA-c9pr-q8gx-3mgp	Exploit, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/tauri-apps/plugins-workspace/security/advisories/GHSA-c9pr-q8gx-3mgp	Exploit, Vendor Advisory

Impacted products

	Vendor	Product	Version
	tauri	plugin-shell	*
	tauri	plugin-shell	*

JSON

To clipboard

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        "Vendor Advisory"
      ],
      "url": "https://github.com/tauri-apps/plugins-workspace/security/advisories/GHSA-c9pr-q8gx-3mgp"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/tauri-apps/plugins-workspace/security/advisories/GHSA-c9pr-q8gx-3mgp"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-C9PR-Q8GX-3MGP

Vulnerability from github – Published: 2025-04-02 22:36 – Updated: 2025-04-03 13:26

Summary

Improper Scope Validation in the `open` Endpoint of `tauri-plugin-shell`

Details

Impact

The Tauri shell plugin exposes functionality to execute code and open programs on the system. The open endpoint of this plugin is designed to allow open functionality with the system opener (e.g. xdg-open on Linux). This was meant to be restricted to a reasonable number of protocols like https or mailto by default.

This default restriction was not functional due to improper validation of the allowed protocols, allowing for potentially dangerous protocols like file://, smb://, or nfs:// and others to be opened by the system registered protocol handler.

By passing untrusted user input to the open endpoint these potentially dangerous protocols can be abused to gain remote code execution on the system. This either requires direct exposure of the endpoint to application users or code execution in the frontend of a Tauri application.

You are not affected if you have explicitly configured a validation regex or manually set the open endpoint to true in the plugin configuration.

Technically the scope was never a limitation for the rust side as it is not seen as an enforceable security boundary but we decided to mark the rust crate as affected since the plugin does not need to be a frontend dependency to be exposed.

Patches

The issue has been patched in the 2.2.1 version of the plugin. The plugin now differentiates between an unset scope and an explicit validation disable for the open endpoint.

Workarounds

A way to prevent arbitrary protocols would be setting the shell plugin configuration value open to true.

tauri.conf.json

"plugins": {
    "shell": {
          "open": true
     },
}

The above will only allow mailto, http and https links to be opened.

If the open endpoint should not be allowed at all there are two possible workarounds. - Defining a non matching regex like tauri^ in the plugin configuration - Removing shell:default and all instances of shell:allow-open from the capabilities

Alternatively we recommend usage of the opener plugin, as the shell plugin deprecated the open endpoint previously.

References

PoC

This is a windows specific proof of concept.

Use create-tauri-app to make a new Tauri app.
Run tauri add shell to add the shell plugin.
Execute await window.__TAURI_INTERNALS__.invoke("plugin:shell|open", {path: "file:///c:/windows/system32/calc.exe"}); in the developer console.
Observe the calculator being executed

Severity ?

9.3 (Critical)


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

Show details on source website

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{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "tauri-plugin-shell"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "@tauri-apps/plugin-shell"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-31477"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-04-02T22:36:45Z",
    "nvd_published_at": "2025-04-02T22:15:20Z",
    "severity": "CRITICAL"
  },
  "details": "### Impact\n\nThe Tauri [`shell`](https://tauri.app/plugin/shell/)  plugin exposes functionality to execute code and open programs on the system. The [`open`](https://tauri.app/reference/javascript/shell/#open) endpoint of this plugin is designed to allow open functionality with the system opener (e.g. \n `xdg-open` on Linux). This was meant to be restricted to a reasonable number of protocols like `https` or `mailto` by default.\n\nThis default restriction was not functional due to improper validation of the allowed protocols, allowing for potentially dangerous protocols like `file://`, `smb://`, or `nfs://` and others  to be opened by the system registered protocol handler.\n\nBy passing untrusted user input to the `open` endpoint these potentially dangerous protocols can be abused to gain remote code execution on the system. This either requires direct exposure of the endpoint to application users or code execution in the frontend of a Tauri application.\n\nYou are not affected if you have explicitly configured a validation regex or manually set the `open` endpoint to `true` in the plugin configuration. \n\nTechnically the scope was never a limitation for the rust side as it is not seen as an enforceable security boundary but we decided to mark the rust crate as affected since the plugin does not need to be a frontend dependency to be exposed.\n\n### Patches\n\nThe issue has been patched in the `2.2.1` version of the plugin.\nThe plugin now differentiates between an unset scope and an explicit validation disable for the `open` endpoint.\n\n### Workarounds \n\nA way to prevent arbitrary protocols would be setting the shell plugin configuration value `open` to `true`.\n\n`tauri.conf.json`\n```json5 \n\"plugins\": {\n    \"shell\": {\n          \"open\": true\n     },\n}\n```\n\nThe above will only allow `mailto`, `http` and `https` links to be opened.\n\nIf the `open` endpoint should not be allowed at all there are two possible workarounds.\n- Defining a non matching regex like `tauri^` in the plugin configuration\n- Removing `shell:default` and all instances of `shell:allow-open` from the [`capabilities`](https://tauri.app/security/capabilities/) \n\nAlternatively we recommend usage of the [`opener`](https://tauri.app/plugin/opener/)  plugin, as the shell plugin deprecated the `open` endpoint previously.\n### References\n\n#### PoC\n\nThis is a windows specific proof of concept.\n\n1. Use `create-tauri-app` to make a new Tauri app.\n2. Run `tauri add shell` to add the shell plugin.\n3. Execute `await window.__TAURI_INTERNALS__.invoke(\"plugin:shell|open\", {path: \"file:///c:/windows/system32/calc.exe\"});` in the developer console.\n4. Observe the calculator being executed",
  "id": "GHSA-c9pr-q8gx-3mgp",
  "modified": "2025-04-03T13:26:08Z",
  "published": "2025-04-02T22:36:45Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/tauri-apps/plugins-workspace/security/advisories/GHSA-c9pr-q8gx-3mgp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-31477"
    },
    {
      "type": "WEB",
      "url": "https://github.com/tauri-apps/plugins-workspace/commit/9cf0390a52497e273db1a1b613a0e26827aa327c"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/tauri-apps/plugins-workspace"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Improper Scope Validation in the `open` Endpoint of `tauri-plugin-shell`"
}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2025-31477 (GCVE-0-2025-31477)

FKIE_CVE-2025-31477

GHSA-C9PR-Q8GX-3MGP

Impact

Patches

Workarounds

References

PoC

Tags

Sightings

Nomenclature