CVE-2026-41219

import sys import os # Proof of Concept for CVE-2026-41219 # This script simulates an attacker reading sensitive data from a QKView file # due to improper sanitization. def exploit_qkview_vulnerability(file_path): """ Simulates the parsing of a QKView file to extract sensitive info. In a real scenario, this would leverage the lack of sanitization to read arbitrary files or data within the archive. """ print(f"[*] Attempting to parse QKView file: {file_path}") if not os.path.exists(file_path): print("[-] File not found.") return try: with open(file_path, 'r', encoding='utf-8', errors='ignore') as f: content = f.read() # Simulating the extraction of sensitive data (e.g., passwords, keys) # that should not be accessible to low-privileged users. sensitive_keywords = ['password', 'secret', 'private_key', 'api_key'] found_sensitive = False for line in content.splitlines(): for keyword in sensitive_keywords: if keyword in line.lower(): print(f"[+] Potential sensitive data found: {line.strip()}") found_sensitive = True break if not found_sensitive: print("[!] No obvious sensitive strings found, but binary data may still be leakable.") except Exception as e: print(f"[-] Error during exploitation: {e}") if __name__ == "__main__": # Usage: python poc.py <path_to_qkview_file> if len(sys.argv) < 2: print("Usage: python poc.py <qkview_file_path>") else: exploit_qkview_vulnerability(sys.argv[1])

{"cve": {"id": "CVE-2026-41219", "sourceIdentifier": "[email protected]", "published": "2026-05-13T16:16:44.620", "lastModified": "2026-05-13T16:27:11.127", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "An improper sanitization vulnerability exists in the BIG-IP QKView utility that allows a low-privileged attacker to read sensitive information from a QKView file.  \n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated"}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/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": 7.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "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"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-532"}]}], "references": [{"url": "https://my.f5.com/manage/s/article/K000157895", "source": "[email protected]"}]}}