CVE-2026-26073

#include <thread> #include <queue> #include <iostream> // Mock vulnerable component simulating EVerest behavior class VulnerableQueueManager { public: std::queue<int> shared_queue; // Missing std::mutex mtx; in vulnerable version // Simulate Powermeter public key update void update_key() { // Simulate heavy modification of the queue structure for (int i = 0; i < 100; ++i) { shared_queue.push(i); } // Potential corruption if another thread pops here } // Simulate EV session/error event handling void handle_event() { if (!shared_queue.empty()) { shared_queue.pop(); } } }; void trigger_race() { VulnerableQueueManager manager; // Thread 1: Attacker triggers key update std::thread t1([&manager]() { manager.update_key(); }); // Thread 2: System handles EV session concurrently std::thread t2([&manager]() { manager.handle_event(); }); t1.join(); t2.join(); std::cout << "Race condition triggered. Check with TSAN for data race reports." << std::endl; } int main() { trigger_race(); return 0; }

{"cve": {"id": "CVE-2026-26073", "sourceIdentifier": "[email protected]", "published": "2026-03-26T17:16:33.250", "lastModified": "2026-03-30T21:04:21.080", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "EVerest is an EV charging software stack. Versions prior to 2026.02.0 have a data race leading to possible `std::queue`/`std::deque` corruption. The trigger is powermeter public key update and EV session/error events (while OCPP not started). This results in a TSAN data race report and an ASAN/UBSAN misaligned address runtime error being observed. Version 2026.02.0 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 una condición de carrera de datos que lleva a una posible corrupción de 'std::queue'/'std::deque'. El desencadenante es la actualización de la clave pública del medidor de potencia y los eventos de sesión/error del VE (mientras OCPP no está iniciado). Esto resulta en un informe de carrera de datos de TSAN y la observación de un error en tiempo de ejecución de dirección desalineada de ASAN/UBSAN. La versión 2026.02.0 contiene un parche."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 5.9, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.2, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-122"}]}, {"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-787"}]}], "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-jf36-f4f9-7qc2", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}