RustDesk – FileTransfer Session Authorization Scope Bypass_CVE-2026-58056

7.6 / 10

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L

Description

RustDesk gates incoming control messages on per-capability flags rather than on the session's authorized connection type, and a file-transfer session does not clear those flags. A peer holding only a valid FileTransfer authorization can inject keyboard and mouse input and reach the unguarded screenshot and display-capture handlers, acting outside its granted scope.

Basic Information

ID CVE-2026-58056

Source VulnCheck

Published Jun 28, 2026 at 01:32

Affected Product

Vendor RustDesk

Product RustDesk

Affected Versions RustDesk RustDesk 0

CWE Classification

CWE-863

References

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    "lastseen": "",
    "description": "RustDesk gates incoming control messages on per-capability flags rather than on the session's authorized connection type, and a file-transfer session does not clear those flags. A peer holding only a valid FileTransfer authorization can inject keyboard and mouse input and reach the unguarded screenshot and display-capture handlers, acting outside its granted scope.",
    "published": "2026-06-28T01:32:57.879Z",
    "modified": "2026-06-28T01:32:57.879Z",
    "type": "cve",
    "title": "RustDesk - FileTransfer Session Authorization Scope Bypass",
    "source": "VulnCheck",
    "references": "https://github.com/bikini/exploitarium/tree/main/rustdesk-session-permission-pocs\nhttps://www.vulncheck.com/advisories/rustdesk-filetransfer-session-authorization-scope-bypass",
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    "cwe": [
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    "cvelist": null,
    "sourceData": "RustDesk RustDesk 0",
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    "cvss": {
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        "version": "3.1"
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        "confidentialityImpact": "",
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        "cvssV3": {
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    "product": "RustDesk",
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