CVE-2026-9114

# This is a conceptual PoC for CVE-2026-9114 # Actual exploit requires specific packet crafting and heap grooming import socket import struct def send_malicious_quic_packet(target_ip, target_port): """ Sends a crafted QUIC packet to trigger the UAF condition. Note: This is a placeholder to demonstrate the concept. """ try: # Create a UDP socket (QUIC uses UDP) sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) # Placeholder for malicious payload construction # Real exploitation involves specific QUIC frame types and stream IDs # that trigger the reference count bug in Chrome < 148.0.7778.179 header = b'\x00\x00\x00\x00' # Simplified Header payload = b'A' * 100 # Padding to influence heap layout packet = header + payload sock.sendto(packet, (target_ip, target_port)) print(f"[+] Malicious packet sent to {target_ip}:{target_port}") sock.close() except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": # Example usage send_malicious_quic_packet("127.0.0.1", 443)

{"cve": {"id": "CVE-2026-9114", "sourceIdentifier": "[email protected]", "published": "2026-05-20T20:16:42.427", "lastModified": "2026-05-20T20:16:42.427", "vulnStatus": "Received", "cveTags": [], "descriptions": [{"lang": "en", "value": "Use after free in QUIC in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to execute arbitrary code inside a sandbox via malicious network traffic. (Chromium security severity: High)"}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-416"}]}], "references": [{"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0841193308.html", "source": "[email protected]"}, {"url": "https://issues.chromium.org/issues/495798630", "source": "[email protected]"}]}}