CVE-2026-34671

# This is a conceptual PoC for Integer Overflow leading to DoS # Language: Python (Conceptual) def trigger_overflow(data_size): try: # Simulating a scenario where size is used for allocation or loop # If data_size is extremely large, it might wrap around or cause memory error if data_size > 0xFFFFFFFF: # Simulated overflow condition size = data_size & 0xFFFFFFFF # Wraparound else: size = data_size print(f"Allocating buffer with size: {size}") # In a real vulnerability, this might cause a crash due to # malloc failure or buffer overflow if size wraps to a small positive number # but the actual data copied is huge. buffer = ['A'] * size print("Operation successful (Vulnerability not triggered in this safe simulation)") except MemoryError: print("Denial of Service: Memory allocation failed due to large size.") except Exception as e: print(f"Crash occurred: {e}") # Attempting to trigger with a large value # In a real exploit, this would be crafted to hit the specific vulnerable function trigger_overflow(0xFFFFFFFFFFFFFFFF)

{"cve": {"id": "CVE-2026-34671", "sourceIdentifier": "[email protected]", "published": "2026-05-12T20:16:37.693", "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 Integer Overflow or Wraparound 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-190"}]}], "references": [{"url": "https://helpx.adobe.com/security/products/content-authenticity-sdk/apsb26-53.html", "source": "[email protected]"}]}}