CVE-2026-33816: jackc/pgx v5内存安全漏洞

/* * PoC Concept for CVE-2026-33816 * This is a conceptual demonstration of triggering the memory safety issue. * Note: Actual trigger payload requires reverse engineering the specific patch. */ package main import ( "context" "fmt" "github.com/jackc/pgx/v5" "time" ) func main() { // Target configuration connStr := "postgres://user:pass@localhost:5432/dbname" ctx := context.Background() // Attempt connection conn, err := pgx.Connect(ctx, connStr) if err != nil { fmt.Printf("Connection failed: %v\n", err) return } defer conn.Close(ctx) // Simulate sending a crafted/malicious packet or query // that triggers the memory corruption in pgx v5. maliciousInput := "\x00\x01\x02..." // Placeholder for specific payload _, err = conn.Exec(ctx, maliciousInput) if err != nil { fmt.Printf("Exploitation attempt result: %v\n", err) } // If successful, the process may crash or result in RCE time.Sleep(1 * time.Second) }